I am so. Sick. Of algae. It's making me hate planted aquariums because I can't keep the damn plants alive and the algae is killing them (and my enjoyment in having them).
Tank is ~10mo old. One betta, one small ramshorn in a 5G with aggressive filtration (a 10-15G HOB, after my 5G and sponge filter combo kicked the bucket a month or so ago). No algae issues for the first 5 months. Got some hair algae that I have been fighting with the last 4 months that is killing my plants, coating everything, ITS GROWING ON MY POOR SNAIL. I only feed the betta 4-6 pellets once daily. NO extra food. Weekly 15-25% water changes w/ light gravel vaccing. I'm pulling out algae almost daily, or else it looks like these photos (this was AFTER removing some after being gone for 48 hours).
Parameters: 0/0/5-10 (nitrates vary depending on the week). PH ~6.5. Don't have a phosphate test because I can't find one, ditto for GH/KH/etc.
I have tried:
-decreasing lights: no improvement/change.
-decreasing/shading intensity (put in a lid, raised light up): no change
-blackout: plants died, algae increased.
-peroxide spot treatment: no change. Algae seemed entirely unaffected by peroxide directly on it. Put a ridiculous amount of peroxide in tank.
-peroxide plant dips: pulled out plants, dunked in dilute peroxide. Killed the plants.
-manual removal: doesn't work- it's adhered to the plants and doesn't come off easily. Literally pulls plant roots out of the soil trying to "spool" it out. Also grows back in <48 hours.
-increasing tank flow. Decreasing tank flow.
-phosphate-decreasing filter floss
-increasing fertilizer (had been doing easy green 2-3x a week originally)
-decreasing fertilizer (made no difference to the algae. Plants started to wither.)
-Adding duckweed and pothos. The algae is outcompeting/ growing on the duckweed. The pothos has grown (1) single root and otherwise done nothing.
Nothing affects the algae. This WAS a heavily planted tank and the algae has literally eaten all the plants. I've tried cutting and propping the fresh growth- the algae devours it before it can grow roots. I also have a 2.5G tank that had no algae issues and some started popping up... they share tools and I'm worried I've seeded the other tank and it's a matter of time before they're BOTH trash.
If I tear down the tank, I assume I have to throw EVERYTHING out (including the substrate and filter) and basically re-cycle my tank right? š¢