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Well, the Green Dust Algae got pretty nasty. I hadn’t touched the tank in weeks, and it looked like it, so I broke down Friday nite and cleaned it. There was so much GDA that after scraping it off gave the water a strong green tint. So I did an 80% water change too, just to get most of it out. And I’m still having trouble with some kind of green algae growing on the sand. So I gravel vacuumed up the top 1/2″ or so, Chloroxed it, and put it back.
I’ll have to go back and check my records I think it had been three weeks since I touched the tank. And doing so created a maintenance effort that was probably 3 hours in total. A good bit of work I’m afraid. Or, I suppose you could say 1 hour a week for 180 gallon aquarium isn’t too bad. Especially with plants and discus.
I obviously trimmed the plants while I was at it. It felt like a pound or two of trimmings were pulled out. Tank looks better now though.
These photos really look aweful. The depth of field - or rather lack thereof - makes the tank look flat. I need to get a better camera, because I can tell you these boring, unidimensional pictures, just don’t show what the tank looks like in real life… where you can see the layers of depth. It also makes the fish look like they’ve got no room, when in actual fact they’ve to all kinds of room. So one day, a new camera. But for now, here’s a few pics of my fish.
I’ve got two types of discus, Cobalts and High-bodied Leopards. Both sets purchased from Dan at Gulf Coast Discus. If you look hard, or click on on of the pics to pull up a larger shot, you can see that one of the Leopard’s tails is a bit raggedy. I’ve got two fish that get beat up by the other fish. The ragged tailed Leopard, and my runt Cobalt. I’m not sure the runt can be seen in these pics - he’s hanging to the background where it is safe.
Anyway, here’s some pics.
I’m tired of cleaning green dust algae. Tired of trimming plants. So I’m taking a break from maintenance this week.
Usually I’ll clean the tank on a Friday evening if we don’t go out. Or Saturday afternoon/evening if we do. But last night we didn’t go out, and I was tired. Didn’t feel like farting around with the tank. And this afternoon we are going to the SimplyDiscus.Com 2008 Northeast Meeting and Cookout. So it won’t get cleaned then. I’m sure that tomorrow I’ll feel compelled to clean. But I’m not doing it on schedule.
Actually it didn’t get cleaned last week either. So the plants have been at least two weeks without a trim. So some old leaves are getting algae - that’s natural. Others are rotting. Natural too. But that’s why regular maintenance is required.
And the green dust algae (GDA) is getting bad in some places. Here’s a pic. Not very good, and clicking brings up a larger one. In this you can see that the GDA really does need attention. And the crypts need old leaves trimmed off.
I chose this pic because it reminded me of something disconcerting this week…
Earlier this week I came in to feed the fish one morning, and there was a bunch of foam on the surface of the tank, up against the tank wall. Uh oh. Looks like protein film. Hmmmm. I wonder what died?
All the discus were there. But a couple of days ago I noticed that one or two of my cockatoo dwarf cichlids seem to be missing. I had four males and two females. This pic is a typical feeding shot. When I drop in frozen blood worms everybody comes out of the bushes in a hurry! Dwarf ciclids, corys, biota striata (zebra loaches), and ghost shrimp. They all love bloodworms. But now, no more than two or three male cockatoo dwarfs. At least one is gone. If I can get them to hold still long enough maybe I can count.
I’m not really up on these fish… I suppose one or two could be guarding a brood. I’ve got breeding caves hidden in the plants. I wouldn’t know. I just hate to think that one or two died. They were young, and apparently healthy. I quarantined them for almost six weeks, and hit them with all sorts of prophylactic meds. If that didn’t kill them, I’m concerned that tank conditions would.
But it has been hot this week. The tank temps have been climbing as high as 85-86 degrees F every afternoon. Maybe it’s time to turn on the air conditioners and bring the ambient temperature in the room down a bit. It’s definitely killing my Ludwigia repens. Could be giving my poor cockatoo dwarf cichlids a hard time too.
And speaking of hard times… my favorite plant forum plantedtank.net has been down for two days. And I notice that aquaticplantcentral.com is down for repairs. I wonder that there has been another attack on aquatic plant sites? Hope not. And I hope that whoever it is that does that discovers in a nasty way that there is karma in the universe, and that what goes around comes around. But mostly I hope everything is ok.
Well! The tank survived a year! No mishaps. No floods. No tank killing algae. Cool!
I would have posted sooner, but we have had house guests, and tank things had to wait.
Hardware
I had some work to do before I made it to the 1 year mark. I wanted to finish all my under the stand stuff. So I bolted down my second Ocean Clear filter that had been loose before. And I did a thing I had really been dreading… moving my water depth sensor.
I haven’t posted the technical details of my setup yet, but suffice to say I have an auto water change rig that does not require any floats or sensors in the tank. It detects a “full” condition with a water pressure switch in the stand that gets water through a bulkhead hole in the bottom of the tank. And so that little critters don’t crawl down the hole, in the tank it’s covered with a somewhat unsightly filter sponge. If you have noticed the patch of crypts to the front left of my tank, it’s there to hide the sponge.
Well I wanted to create an open area to the left of the tank, and that meant that I had to push those crypts further back and to the right a bit. But that exposed the sponge, so I had to unscrew it from the bulkhead, cap off the bulkhead, and screw it into a different, better hidden bulkhead. That’s a real PITA with a tank full of water and three inches of sand in the bottom of the tank. And none of that describes all the hardware I had to move under the tank. Anyway, maybe you can see why I procrastinated. 
I’ve got a few additional changes to make, with the hardware waiting in the wings. But I don’t need any of it yet, so I figured there’s no harm in crossing the 1 year threshold without doing that too.
Now that the tank has been up a year, there are a number of long-term maintenance things to start doing. Like changing the carbon filters that strip the chlorine out of the water as I add it each night. And changing the UV filter light. And - though I don’t like the cost - the HQI hologen bulbs need to be changed. Drat! This is going to add up.
Fauna
Been a lot of changes this year in fish. My school of Green Neons (P. simulans) has lost a few fish. It’s getting pretty small now - no more that 30 I’d guess. And I recently added six juvenile cockatoo dwarf cichlids that are doing quite well. And my small school of Otocinculus catfish has gotten smaller. I think I’m down to less than 10. But that’s OK, they can be tough on discus sometimes.
But my shrimp are doing great. I’ve still got quite a few Amano’s. I’m guessing 25 or 30. They are hard to count in a planted tank. And I’ve got no idea how many of the orginal 100 ghost shrimp purchased for this tank are still around. But it’s a bunch. Every week I find a new one or two on the floor in front of the tank - or so it seems. But at that rate they should be almost all gone. But they aren’t and I don’t think they are breeding because I never see any juveniles. Either way, I’m glad they are still around because they are great at eating excess discus food.
And as for the discus, they are fine. Or at least I assume that since they are still breeding like rabbits. I have at least two pairs breeding every couple of weeks. Maybe three pairs. I have to admit I don’t pay much attention since all the eggs are toast in a tank full of neons, dwarf cichlids and shrimp. But knowing that they are breeding is my way of knowing they are reasonably healthy and stress free.
Flora
I’m going into the second year for this tank with something that I’m not really happy to call an aquascape. IMO it’s a little lousy looking - closer to what I refer to as JABOP, or Just A Bunch Of Plants. But I’m still working through the set of plants that will tolerate my ultra soft water and the warm water temps that discus need. And having somewhat low maintenance plants is also an important criteria they must all pass.
So another real aquascape is coming. But not yet. Crossing the 1 year mark I ripped out a lot, trimmed a lot, and moved a lot of plants around. So I’m letting things settle a month or so before I go messing with stuff. And just to manage expectations… my aquascapes are not set up to look good in pictures. They are set up to look good in person. For instance, the open area on the left is that way to attract and hold fish. The tanks right side is in a corner of the room. So that keeps fish closer to where the people watching them are. But it does not always make for the best looking aquascape in photos I’m afraid. Sorry.
Conclusion
It’s been a pretty good 1st year for the tank. Algae pretty much under control, even if it did take too long. Fish are fine, plants healthy, and that tank hardware pretty much installed and complete.
This next year I’m going to have to redouble my efforts to get this to a nice looking aquascape. I like a challenge, and that will certainly be one.
Two days after this picture was taken my tank will have been up for one year. And that pic was taken two days ago. So today makes 1 year! Yippee!!!
But this isn’t the anniversary photo. Maybe I’ll take that tonight. There have definitely been changes in the last two days.
It’s been a stable year for the tank. But a disappointing year in some ways too. And a year of learning.
The fish have been healthy. I did have one case of bloat in one of my discus. And I thought that I had lost most of my Ottocinclus catfish until I tried to put some Rotalla wallichii in the tank, and I caught them eating the tips. So I guess they are just hiding in the plants unless there is something really tasty to come out for. Same with my amano shrimp (cardinia japonica). I thought they were gone too, but when I did a big trim a couple of weeks ago, I found dozens of them. Hiding too I suppose.
I’ve struggled with algae in this tank. None of the bad varieties. Just green spot (GSA) on the plants and green dust algae (GDA) on the tank walls. Lots of “experts” will tell you that GDA in particular just means you have a healthy tank. But lots of people don’t have it at all. I don’t mind a little. A minor wall cleaning every week or two is fine. But in a 180 gallon tank, any more than that is work. And I’ve been working.
I’ve flirted with a number of fertilization dosing regimens, and have settled back on the one I started with: letting the N an P in my tap water supply those macros, coupled with that being produced by plants, excess food, and biological breakdown of plant matter, supplemented with daily potassium and limited daily micros. That seems to both keep my plants healthy, and keep away the thread algae that wants to appear in any of my tanks that have sand substrates coupled with Phosphates over 1.4 ppm.
Ultimately I think the reason why dosing normal levels of N & P did not work for me in this tank was that my plant mass to animal mass ratio could not sustain it. The ammonia excreted by the discus was not being utilized by the plants fast enough. The plants were being dosed good levels of nitrogen in my dosing regimen, and the ammonia (NH4) was not being used fast enough and was triggering algae growth. Not that you could measure any ammonia in my tank. But it doesn’t take much to encourage algae.
For the sake of my plant health - which keeps the algae at bay -I’ve had to make a compromise that really hurts. I’m adding small daily doses of baking soda (NaHCO3), Epsom Salts (MgSO4), and Calcium Chloride (CaCl2) to raise my KH and GH. I’ve gone to great lengths to make this tank as low maintenance as possible, with a reasonable degree of success. One major goal has to been to be free of daily maintenance - with the exception of fish feeding. But if I’m away, anyone can do that for me.
To accomplish that my ferts are injected automatically, and my water changes are done in small, daily, completely automated cycles. To that end I’ve tried to let my plants adjust to the extremely low KH and GH of my tap water, and it just hasn’t worked. They don’t thrive without more calcium and magnesium than my tap provides. And the baking soda helps keep the pH stable. So I’m stuck adding this stuff daily. So much for no daily maintenance. I’ll just have to figure out a suitable way to automate this too.
And finally, I’ve finally finished all of the technical changes to the equipment that supports the tank. I’ve not posted info on it yet, but a pretty elaborate setup support the tank. A year ago I still had an additional pump and filter to install, a few improvements to make to the plumbing, and I needed to move the “water depth sensor” tube to a different bulkhead opening in the bottom of the tank. With that last labor intensive item done this weekend, there are no more planned changes to the equipment under the tank.
So I find myself at the end of a moderately successful first year of this tank. The hardware supporting it is finished. I’ve got the algae under control. And have finally found plants that work well with these lights, at these fertilization levels, at the warm temperatures discus require.
On the down side, I’ve got to figure out a way to automate my daily GH/KH boosting. And I’m not happy with the aquascape. That will - no doubt - be the focus of my efforts this coming year.
PS - If you see the dark discus that appear to be sulking in the right corner, they aren’t sulking. They’re OK. They are just tending their eggs.
In my last journal post I said that I’d keep my hands out of the tank until the end of the month, when I passed the one-year mark for the tank. Well, those intentions were great… but I could not help myself.
Most of the stem plants were at the water’s surface, and I don’t want them to get too “leggy”. I’m not a good aquascaper, but if I have to hang on to stem plants to keep this tank healthy, I’d at least like them to be bushy and thick. So they were getting a bit too tall and I cut them.
Because I’ve been fighting excessive Green Dust Algae (GDA) on the tank walls for a number of months, and because it has been MUCH better in the last month or so, I’m worried about pulling too much plant mass out of the tank. So I took metal weights and wrapped them around the tops of the stems I trimmed, and sunk them back into the tank. So hopefully they’ll keep growing and plant mass will not be too adversely impacted by the trimming.
In the pic you can see that the Ludwigia repens to the left is not doing well at all. When I let it grow to the surface it is thrilled. But even nine inches lower than the surface and it starts to really suffer. Now, where I have it growing is not directly under the metal halides. This plant needs high light to thrive. But I’m hard pressed to believe that being 18″ from a 150 watt HQI lamp is not enough light to thrive. I just don’t buy it. Instead I think that when it gets really, really close to the light that the photosynthetic rate that results somehow gets beyond what ever else is holding it back.
I can’t be sure, but I suspect the problem is temperature. My temps fluctuate from about 81.5 to 83.5 during the day. And Ludwidgia - a native of North America - is a cool water plant. But supposedly it can tolerate warmer water. This is kind of my test.
Anyway… the some of the other stem plants I inserted to help with the GDA - Wisteria (Hygrophila difformis) and Green Temple (Hygrophilia corymbosa) - seem to be dealing with heat just fine. Since I’m personally fond of Ludwigia’s, I’d be really tickled if this gets healthy too.
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