Voshon247
Aquarium Advice Freak
- Joined
- May 5, 2013
- Messages
- 225
Does it come off if you touch it? If so then it's not coralline. That combination of dark purple and neon green looks more like Cyanobacteria.
Cyano can come from rock or on frag plugs. Cyano feeds off of phosphates and likes low flow. Even a little phosphate from your water source would create a bloom. Do you know how much TDS is in your water or rather what water are you using?
Edit: forgot that there's also phosphates in some fish food.
Do the water change and scrub the rocks in the bucket not in the tank it will spread if you scrub it in the tank. It will be a tough battle using tap water.
I you can stretch it at all to even use distilled water over tap that would help. Also, how much and how often do you feed? Cyano is caused by excess nutrients in the water, too much food, sometimes too much/long lights. I don't believe crabs are going to eat cyano but they might take care of any green or hair algae
Also you said you used tap water and a conditioner. That's to remove chlorine, not phosphate or any other dissolved solids.
Also, I haven't heard of a CUC member that eats cyano, so that won't fix it.
What will fix the cyano problem, if this is cyano, is to do one or all:
-change to RO/DI water or at the least RO water (distilled)
-stop feeding cyclops unless necessary for filter feeders
-phosban reactor or bag of GFO
Sorry, little bit confused. You feed them twice a day or twice a week? Are they the only two fish in the tank?
It's not necessary, but it's an extra step if it doesn't go away. Good luck