So the last two batches of my clowns have all died within a few days of hatching. I'm thinking it's one or a combination of a few things.
I use a blue LED to attract or just find the larvae, then I scoop them using a brine shrimp net. When I pull them, I have to invert the net, and shake them off into the baby tank. I have a larvae collector from Chad Vossen on the way soon.
I'm using a 5 gallon tank with a bubble wand curved around the bottom. I'm using a heater that keeps the temps right at 80F.
On the first night I add live nanno to the fry tank.
The next day I add rotifers. I don't have a way to measure them, but I run a couple of quarts of the water through my 53um screen and then backflow that into the fry tank.
Here's what I'm thinking.
I know that air bubbles can damage the larvae. I've read about a method where there's four rigid airlines ran into each corner of the tank, but it's covered in a 200 micron cloth to make the bubbles fine. It will still add a ton of air flow for the tank and the damage from air bubbles will be minimal.
I'll have to fill the tank about half way up though.
Also the fry have been settling onto the bottom of the tank after the first night or two. This is a bad thing. I'm going to add a 15 watt light above the tank, but it's still going to be covered with a white cloth on the top and dark on the sides. That way seeing the food isn't going to be a problem.
I'm going to use rotifers for day 1-7 and small amounts up to 30 days
live artimia on day 5-15
crushed flake food and cyclopese day 3-20
I'm also going to be ordering Selcon to add to some of the feed for both the fry and parents.
Any help on this would be appreciated!