2meter

Hello my name is Anders I am kind of new on this forum. I hope that I learn a lot here and that u can help me. The tank is 200x60x40 the fish that are going in are : 1 -P, ornattapitus 1 -P. senegalus 2 -Erpetoichthys calabaricus 1 -arowana knifefish 1 -hejuta beani 1 -M. dayi I wanted to...