My fishtank is turning all purple

[Tio70]

I have a 85 gallons with skimmer 50 pounds of live rock
2 clown fish a condy anemona, some hermit crab and cleaner shrimps
and after every water change my sand and my rock is growing somethin between purple and borwn lets say is most puple I guess is alguee, I checked all the parameters and everything seems to be good

I this kind of algee bad for the aquarium

 

[Kurt_Nelson]

Hard to really say what's going on without pictures or a better description, but if it's hard purple stuff that doesn't blow off, then that's probably coraline algae - a good thing. If it's purple slimy stuff and can be brushed off, then that's probably cyanobacteria - a bad thing. And the brown stuff... if could also be cyanobacteria, but if it looks more like a rusty powder, then that's diatoms - a normal thing that happens early in a tank's life. Eventually they will burn themselves out.

 

[Tio70]

Thanks Kurt I started my tank in December and i will show you some pictures so you can have better idea what's going on, I pretty new in all this stuff but i like it

 

[Tio70]

Kurt if you go to this website what I have is what you said cyanobacteria is like the left picture Bacterial and Algae Hitch Hikers in the algee section, what can I do withe this problem

 

[Kurt_Nelson]

Main cause for cyano is too many nutrients, either from overfeeding, overstocking, poor maintenance, poor water, etc.

 

[Tio70]

Poor Water is not
Overstock is not
Probably overfeeding could be
thanks

 

[Tio70]

I found what was the problem after too muchs reaserching it was circulation problem and phosfate accumulation

I added a phosphate absortion media and its much better

 

[PrettyFishies]

Good to hear.