Nate pretty well covered it, I'd actually go 4-5 hours of light though. I'd also recommend dosing some Excel until that clears up.Never stop dosing fertilizer to "fix" algae issues. You need to do manual cleanup, a large water changes, more manual cleanup, and another large water change.
That's diatomaceous algae, and other than getting a diatom filter, you'll have to clean up the water through water changes. Keep running CO2 and dosing, but you want want to cut back your photoperiod to like 5-6 hours until it clears up.
Never stop dosing fertilizer to "fix" algae issues. You need to do manual cleanup, a large water changes, more manual cleanup, and another large water change.
That's diatomaceous algae, and other than getting a diatom filter, you'll have to clean up the water through water changes. Keep running CO2 and dosing, but you want want to cut back your photoperiod to like 5-6 hours until it clears up.
I see severe Mg deficiency, but I don't see Fe deficiency. A UV will definitely help clear up bacterial bloom or green water, but I don't know anything about its effectiveness against diatoms. Always wanted to run UV just to see, but I've never been willing to pay for it... LolI'm a novice but it looks like an iron deficiency to me. I had a similar type of algae which I later heard wasn't really algae, it's a bacteria. My lfs had a sale on small UV filters so I added one of those while dosing Excel and adding an iron supplement to my usual fert schedule. That seemed to do the trick. The algae went away and my plants got their healthy green color back.
What was your Excel dosing regimen during the blackout?I’ve had a very similar outbreak accept it was much much much worse. I literally had algae close to mounded out of my water. I turned the lights off, gave it a black out for 5 days while dosing excel (it was actually metricide) everyday. I ended up with a perfectly clear tank and have not had the algae since. Of course I did correct my over abundance of light. Oh and I forgot to add that I definitely cleaned as much algae as I could put first.....duh![]()
Good Luck, skye
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