How to fix this problem?
Take a look at my tank and tell me how to fix this problem please.
I'm thinking i need to clean my BIOwheel 350 but not sure. I literally have been doing 10-15% water changes weekly. Should I try and go for 50%?
Also have 2 28w t5 Bulbs.
What could be the problem?
All the plants and fish are doing well.
4 tiger barbs
3 Jack dempseys
Hairgrass, dwarf lillies, and a onion bulb?