first post with help needed
what is this thing growing in my tank ?
it came all by its own, took around 6 weeks to became this size from nothing. both are growing on the same rock. I like the colors and I thought it is coral at the beginning, but because of the fast growing I started to doubt it.. can some one help?
before any one asks, all aquarium levels are perfect, no ammonia, no nitrite low nitrate, I have phosphate level 2 on before a month and lowered it to 1 before three weeks.