Hello everyone! I set up a little 7 gallon tank with an air stone and a good light above it to get copepods to breed in another space for our mandarins. No filter and just a clump of chaeto and a handful of porous media tubes. I dose phyto in there every couple of days. Will this be enough to keep a culture and chaeto going long term? A brown slime just started to grow on the tubes so I was going to put a couple of turbo snails in there overnight. Will that harm them at all? Thanks for any pointers you can give me!