he was in a 55gal for a long while about 2 months with no growth at all. then my mom decided she wanted to put some small african cichlids in their so i had to move him. im feeling a little better now, hes started eating feeder goldfishn today, fish which are half his size. I took a rainbow shark my mom had that had been picking on her cichlids and put him in my large catfish tank. if he survives for 2 weeks then im gunna put my TSN in there to grow, im just afraid they might eat him right now.
Growth needs 2 things... good food (Check) and good water (20% on a 20 gallon 1 time a week isn't good enough by far) do that every other day, give it a month to get it's metobolic rate sorted and you'll see an EXPLOSION of growth