Otocinclus tank

It's been almost a month since I re-did the former Macropodus tank. After I cleaned the tank out and added some new plants, the old plants died back seriously. It was especially noticeable with the Echinodorus, which had previously dominated the tank. Their leaves first went pale, and then much of the tissue died, but not the whole leaf.

Apart from adding a lot more plants, I also created a small "sand lens" in the front of the tank. And, of course, I added a population of Otocinclus and two dwarf corys. So how have things changed?

Here's the tank today; while I'm having a hard time getting the Lilaeopsis to root, the Hemianthis is really coming along nicely.

Here's the tank three weeks ago, when the die-back had just started


And here's the tank three days before that, shortly after I had cleaned it out