no filtration

Long story short, I have a 16 gallon tank that I’ve only been using to house some feeder shrimp, crabs, and a toadfish. I originally broke it down as a reef tank when I moved everything in it to my main 75 gallon reef system. I only have it about halfway full and I primarily just use it to raise...

So I have a 32 gallon biocube and as of now only have a single clown fish, royal gramma and about a dozen snails, I plan on adding corals very soon. I have struggled with dinos in the past and just tested my water and got a .02 reading for phosphates and 0.0 reading for nitrates. Knowing that...