Hello fellow aquarists, I have a question. In my i tank I have the U4 fluval filter and a heater (plus thermometer)(photos attached) with plants, wood and rock in it and 1 zebra nerite snail, 3 amano shrimp, 2 bamboo shrimp, 4 bronze corydoras, 8 harlequin rasboras, 1 metallic Amazon blue...