My Macroalgae seems like its dying, new growth has turn whitish.
Has it gone sexual or something else like lack of nutrients?
This tank is a cycled tank without corals yet. nitrates are around 20-40ppm and phosphates are around 0.6-1 ppm. Light is strong freshwater plant light.
If so what...
Caleurpa racemosa for sale. $10 per bunch (fist sized). Growing well under low intensity LED's in a sump refugium. Located in Ipswich, Queensland, Australia. No shipping available.