For the past few days, my sand bed has been covered with what looks like red slime during the day, but it disappears with all the lights comes on in the evening.
My tank is outdoors and has a lot of sunlight. Don't have much problem with hair algae in the past. My lights comes on between 5.30pm to 9.30pm.
When the red slime started to appear, ph level also seems to have dropped too. KH was low but have managed to raise it to acceptable level. CA and MG is a bit on the low side as well, but have been dosing to raise them gradually.
Corals and fishes look ok, so far.
Anyone experienced something like this before? Please advise. Thanks!
My tank is outdoors and has a lot of sunlight. Don't have much problem with hair algae in the past. My lights comes on between 5.30pm to 9.30pm.
When the red slime started to appear, ph level also seems to have dropped too. KH was low but have managed to raise it to acceptable level. CA and MG is a bit on the low side as well, but have been dosing to raise them gradually.
Corals and fishes look ok, so far.
Anyone experienced something like this before? Please advise. Thanks!
