Hello. I've had lots of freshwater fish in the past and a few weeks ago I decided to get into a FOWLR tank. I took one of my old 15-gallon tanks and installed a surface skimmer, powerhead, heater, and aqua clear 30. I added 15 pounds of dry rock and crushed coral (each 15 pounds). I used RODI water. I cycled the tank with Mitrobacter start XLM and pure aquarium ammonia. Currently 0ppm ammonia and nitrite, and 5ppm nitrate and 1.025 salinity. I live in Canada so all fish meds are banned. I got a clownfish that acts completely normal and is very active. A day goes by and I noticed a stringy white poop. Could this have been caused by the stress of moving him into the new tank and not a parasite at all? Also, I managed to get my hands on a bottle of Ruby reef rally pro that I used a while back on some freshwater fish. Would this treatment work on internal parasites if I soak dry pellets in it overnight? Thanks.