I’ve started to believe my nursery tank is magic. In the last 3 weeks, almost everything that’s gone in there has thrived and grown. On December 13th there was Les the zebra danio, one or two baby corydora catfish who weren’t particularily doing well, and a handful of baby apple snails who were also just sort of hanging on. Oh and a little dying plant that consisted of one stem and a few suffering leaves.
Then I changed the substrate from chunky gravel to fine sand. In doing so, I believe I lost the corydora fry because they were hiding in the black gravel so I couldn’t separate them from it. Before removing the gravel, I had taken Les, the plant, and the handful of apple snails and put them in a cup, to spare them the trauma of the substrate change.
All that was December 13th. Since then, I’ve added two egg-clutches worth of baby apple snails, tossed in a dozen or so corydora eggs, and generally just hoped for the best.
Since then, the plant has gone absolutely nuts – the dying bit did die off but before that, it shot off a bunch of shoots and now it’s bigger than it’s ever been, ever! There are two corydora fry that are both over a half inch long – cute little goofs always snarfling about the sand, or relaxing amid the zillion baby snails who keep growing and eating and growing.
In the lower right corner, under the heater, there was an algae wafer there yesterday. The babies pounced it and destroyed it, now they’re going after the vacation feeder block.
You can see some of the babies are a magnitude smaller than others – they are from two clutches, about a week apart. The bigger ones are 16 days old in this pic, the smaller ones about 7 or 8 days. Lots of golds, and the rest are ivory. It’s freaky but with their light shells and light bodies, you can see their little hearts beating when they’re travelling right-to-left. All just a little mess of wee feet and tentacles. Very cute.