New to all of this… I have a 5.5 gallon with a few cherry shrimp and a Hillstream loach in it. I also have a couple Java ferns attached to fake rocks in the back. Using a sponge filter and a nano HOB (because I thought it would help take particles out of the water). It’s been running for a couple months now, the discolored water started about a month into the tanks life cycle. Water tests say my parameters are all good, so I’m not sure why the water is so murky. Any help would be appreciated!