1~5-8 week old angelfish, 2 are laying sideways and gasping
2~nitrites 0, nitrates 10, temp 78°, pH 7.2, ammonia 0)
3~ 45 gallon, 2 weeks cycled. Added filters from other tanks to setup bacteria.
4~topfin s40 sponge filter
5~16 dime size angelfish
6~last night, 25% water change. No Gravel or...