Thought I’d share the fun I’m having with what I believe to be bryopsis.
Greenish brown algae started showing up on my substrate a month or so ago. Did some research and concluded it was probably bryopsis. Nutrients were around 10 nitrates and .25 po4 prior to the algae showing up. After it showed up both were barely detectable via salifert.
I decided to try manual removal and a 3 day blackout while at the same time adding a chaeto refugium to the sump. After the 3 day blackout 90% of the algae was gone, and I hoped that the chaeto would outcompete the bryopsis but two weeks later we’re back to where we started. The chaeto has grown considerably though.
3 days ago I added 6 capsules of Reef Flux to the 60 gallon system and ordered a gfo reactor which will be here Friday. After 3 days I haven’t noticed any change in the suspected bryopsis. Nutrients show 2 nitrates via salifert, and .06 po4 via hanna. I suspect the nutrients are this low due to bryopsis.
Here are some pics of what I’m dealing with under white light. Under normal lighting it appears brown. Also it’s only on my substrate. I don’t know if my cuc is keeping it off the rocks or what.