What Do I Do With This Little Fry?

[Francesjane]

Unfortunately, due to lack of information given to me about how an Uncycled tank can cause fish so many problems, I now need advice on one of my little fry who was born into this Uncycled tank. Basically he's not right....he's so so tiny yet he is five weeks old, and when I say tiny I mean tiny...he's no bigger than other fry I have who are only days old. One minute he's swimming about happily, then the next he's just still in one position for ages, then moves somewhere else and stays there for ages. I did transfer him to another (cycled) tank a few days ago, but he's struggling with the water flow in the tank, which for the other fry is fine, but due to him being so tiny he's getting pushed and pulled by the smallest of currents. This morning I had no choice but to put him back into the breeder box because he's just no energy it seems to swim away from the current even though it's a very gentle current? However...he's still eating and plodding on!!! Any advice? Do I leave him in the box or back in the other tank?

 

[the_lock_man]

Make sure the breeder box gets very regular water changes - the current through those things, generally, isn't great, and ammonia can build up quite quickly, even in a fully cycled tank. Flush it through with clean water (even if this is straight from the main tank), 3 or 4 times a day.
 
Feed him very very small amounts of powdered flake 2 or 3 times per day.
 
It may be that he's just a runt or it may be the issues of the uncycled tank.