Hi all, a 800 mm wide shallow tank now has 10. Guppy, 7 tetras, and about 15 baby platy plus mum ( no dad as I moved her n all was well even tho I had scared tales of moving pregnant fish )' heavily planted,n2 heaters, a sponge filter and power filter. Gritty sand substrate. Do you think I should get rid of some fish. I've baby platys. . My angel will sort out issues if I have them . Your thoughts welcome.