it's laying on it's side with some black streaks on the fins and his body for the past few days. please help. i have separated him and put in a temp tank. been adding some meds, salt.
he's not moving much. barely breathing but not dead.
any assistance is appreciated.
i had substrate (rocks) previously in the tank and it was causing algae so i don't think adding the substrate will help for me.
UV does help but not sure if i want to continue as it can get messy.
this is an established bare bottom tank with no substrate, 40 gal, 2 goldfish, no plants/woods, 1 filter, 1 air stone.
I'm feeding them flakes, sinking pellets, brine shrimps.
My tank water continously become green almost daily with recurring brown algae. I change water frequently but it continues to re-occur.
I read it's related to sunlight and nutrients. First, my tank gets around 6-8hrs light a day. i've reduced this but doesn't seem to help. 2nd part is nutrient...
1 of my goldfish has developed this black streak/lines for the past 3 weeks or so. and other 2 looks like they have fin rot. i checked the ammonia/nitrite/nitrate and all appears to be 0.
a week ago, i started to put all 3 in quarantine tank. i raised the temp from 74 to 78F. added aquarium...