12 days away, fed an appropriate amount of pellets every day and nori every 3-4 days. Phosphate 0.08, nitrate 0 (locked up in algae I’m guessing), alk 6.8. Scraping produced full sheets of algae which I tried to scoop out but the reef mat did 1.6m the day I cleaned it. I also have an INKBIRD and WiFi control of the ac. Final photo is after 20L water change. I’ll do another in two days to lower phosphate and raise alk slowly (coral pro salt will rapidly raise alk if I go any quicker). In future, I’d put a fan on the ‘chiller’ outlet for the INKBIRD and sit it to blow over the sump. Fish and inverts fine, green torch is only half extended (phosphate?), maybe some others have less colour but the alveo is the happiest I’ve ever seen it.
Dealing with Cyano, getting better overtime slowly after putting in chemi clean elite, dropping phosphate slowly
How do you deal with cyano?
Anyone know what type of algae this is? Seems to only pop up in the front of my tank
Tank is almost 2yrs old
Phos : 0.06
Nitrate: 15ppm
New system has been set up for one month now and everyone seems to be settling in Po4 reading low at 0.018 and nitrate sitting at 1.13ppm. Despite thus there's a few spots of hair algae managing to hang in there
Anybody have an idea on why this algae keeps popping up in my tank? It fills up quick on the bottom left corner with some patches scattered throughout the tank, I was thinking of using phosguard because I suspected it could be silicates but that doesn't feed this type of algae and I don't have diatoms, I also don't want to lower my phosphate since it's already at a good level
Nitrates: 14.5
Phosphates: 0.05
12 days away, fed an appropriate amount of pellets every day and nori every 3-4 days. Phosphate 0.08, nitrate 0 (locked up in algae I’m guessing), alk 6.8. Scraping produced full sheets of algae which I tried to scoop out but the reef mat did 1.6m the day I cleaned it. I also have an INKBIRD and WiFi control of the ac. Final photo is after 20L water change. I’ll do another in two days to lower phosphate and raise alk slowly (coral pro salt will rapidly raise alk if I go any quicker). In future, I’d put a fan on the ‘chiller’ outlet for the INKBIRD and sit it to blow over the sump. Fish and inverts fine, green torch is only half extended (phosphate?), maybe some others have less colour but the alveo is the happiest I’ve ever seen it.
What and why is this growing on the back of my tank and some frags I have on the ground. My Phosphate Is at 0.03 and Nitrates at 0.00 I think that’s what causing this growth and I’ve been trying to overfeed, but if anybody has some thoughts.
Water change 05JAN2026 - primary purpose was to remove bryopsis accumulation on right rock formation. Took medium strength toothbrush and removed pineapple sponges and algae on rocks. Broke digitata frag twice during cleaning and glued frags to right rock formation. Rotated main digitata colony. Also glued smaller acro frag in place and adjusted and glued grafted monti cap in location. Need to get phosphates under control to minimize algae growth. Waiting for water turnover overnight before testing additional parameters.
Okay I need to use some GFO cuz my phosphates are a tad high and I’m getting a green hair algae outbreak. I asked deep dive to analyze my tank size (47 gal) and recent phosphate parameters test (0.2 ppm). it recommended I use 300g and that seems like an extremely high amount. I’m scared to crash my system. A BRS video says 1 Tbsp per 4 gallons and I’m thinking of even doing half that just to start gradually. Advice for GFO first timer?
Here's my challenge with my tank. Just did a water change. I've been fighting this green hair algae since I had my 40 gallon tank. It continues in this 125 gallon. The half platform with the little zoa's and the tube on the back wall. I take it out and peroxide clean it. But the other Rock work is just to much to take out and clean the same way. My parameters are: SG: 1.025 TEMP: 78 ALK: 8.9 CA: 430 MG: 1290 PH: 8.2 NO3: 4 PO4: 0.00... now my toldstool hasn't been open for 2 weeks. And my GSP won't open because I cleaned the tube. So, I'm going drastic and I'm putting the GFO back in the sump. I hate to say how much I spent. But I ordered some New fish to help with this algae. Yellow Tang, tomini tang, one spot foxface rabbitfish, and more.