- Joined
- May 10, 2020
- Messages
- 391
- Reaction score
- 450
I've got a 100 gallon mixed reef. Stocked very lightly with fish (a pair of false percala, a royal gramma, a trio of cardinals, engineer goby, and starry blenny). Mostly soft corals, a few LPS and a monti cap. All corals are more of less healthy. Sand bed is 2-4". The engineer goby moves the sand around on ocassion.
I use RODI water that shows 0 TDS and change about 5 gallons a week. I rarely test, and usually only salinity, calc and alk. Pretty stable at 1.024, 350ppm Ca and 7.0dKH. I feed pretty lightly due to the low number of fish. Lighting is a pair of Hydra Twentysix HD LEDs.
I've always had a bit of algae, and cleaned it out during water changes. Since there was so little, I only removed it every second or third water change.
It's been a few years since I added or changed anything in the tank. No new corals, no fish coming or going, no new equipment, no changes to my regimen for caring for the tank. I know it's rare in the reefing hobby, but I decided I liked the tank the way it was and decided to not add anything for a while to limit the risk of pests. So far, so good.
However, a couple of months ago, the green hair algae has been going crazy. One of the worst algae blooms I've seen. Just seemingly out of nowhere.
Any ideas on what the cause might be and how I can go about trying to stop it?
I use RODI water that shows 0 TDS and change about 5 gallons a week. I rarely test, and usually only salinity, calc and alk. Pretty stable at 1.024, 350ppm Ca and 7.0dKH. I feed pretty lightly due to the low number of fish. Lighting is a pair of Hydra Twentysix HD LEDs.
I've always had a bit of algae, and cleaned it out during water changes. Since there was so little, I only removed it every second or third water change.
It's been a few years since I added or changed anything in the tank. No new corals, no fish coming or going, no new equipment, no changes to my regimen for caring for the tank. I know it's rare in the reefing hobby, but I decided I liked the tank the way it was and decided to not add anything for a while to limit the risk of pests. So far, so good.
However, a couple of months ago, the green hair algae has been going crazy. One of the worst algae blooms I've seen. Just seemingly out of nowhere.
Any ideas on what the cause might be and how I can go about trying to stop it?