My question is about a bloom of algae after about 1 year and 4 months into the tank. First, I'm trying to ID - photo attached. It's very low growing and wiry and hard to remove. It grows on the live rock (probably was latent when I got the rock and something is causing it to flourish).
Second, curious as to cause as I want to eliminate. Relevant stats are nitrates 10 (normal for my tank), Red Sea phosphate kit shows .04. I change water (15 to 20%) every other week, 45 gallon all in one, use skimmer, run purigen and chemipure. My two thoughts: original skimmer died, replaced it after a few weeks, but that and break in could have contributed. Also, upgraded my failing LEDs with a new AI Hydra system. Did ramp up time over a few months. Currently I'm only running at 60% intensity max and only 5 hours with a ramp up and down of one hour. I feel I probably should be lighting a bit more but the algae has got me nervous.
Third, advice on removal? I've read a bit about GFO, is that something I could get to work in a tank as small as mine? Another option would be to try to remove some of the rock and scrub, though I don't want to harm the sponges and other life on them.
Help me Reef Central - you're my only hope!
Second, curious as to cause as I want to eliminate. Relevant stats are nitrates 10 (normal for my tank), Red Sea phosphate kit shows .04. I change water (15 to 20%) every other week, 45 gallon all in one, use skimmer, run purigen and chemipure. My two thoughts: original skimmer died, replaced it after a few weeks, but that and break in could have contributed. Also, upgraded my failing LEDs with a new AI Hydra system. Did ramp up time over a few months. Currently I'm only running at 60% intensity max and only 5 hours with a ramp up and down of one hour. I feel I probably should be lighting a bit more but the algae has got me nervous.
Third, advice on removal? I've read a bit about GFO, is that something I could get to work in a tank as small as mine? Another option would be to try to remove some of the rock and scrub, though I don't want to harm the sponges and other life on them.
Help me Reef Central - you're my only hope!