Fry tanks in greenhouse

I have been having some success with my 2 fry tanks that are in the greenhouse. One is filtered using the home made "Alfagrog" airlift filter (that I described in an earlier post) the other is filtered using a BOYU external canister filter. Both are performing well and the fry appear to be growing.

The fry have been extracted from the outside tub pond, where the White Cloud Mountain Minnow have lived during this summer. I have placed about 12-15 fry in the two tanks to grow on. The temperature in the tanks is about 23°C @18:00hrs after a warm day and it seems to drop to the high teens during the night. The fry seem quite happy. I also notice there are at least 4 fry in the pond that are about half an inch long but it has quite a lot of algae growth so they are difficult to see.

Fry tank with BOYU filter

Fry tank with Alfagrog air filter

I also made a hood light from some 9mm plywood. It is 18" long and is drilled at each end to receive a glass tube LED unit that I bought as a submersible light. It comes on for a couple of hours in the evening via a timer switch. It is quite effective though it would not be bright enough for plant growth.