violet color algae?

[dwint]

i have a community tank and im getting this violet color stuff on my decorations.what ever it is its hard to get off.any one no what this is?

 

[emerald76]

Lights?
Params?
Stock?
Tank size?
Filter?
Can we have photos?

 

[ccCapt]

Pretty hard to say without a pic, but if it's hard to get off it's probably coralline algae. If you want to remove it, soak the decorations in vinegar. It will dissolve the coralline.

 

[dwint]

ok ill try vineger.i have a regular floresent bulb emperor filter and i have a blenny ,two clowns and just bought a long nose hawkfish.i always have great parimeters my salinity is alittle low at o.22 but the company says to keep it between 0.20-0-23

 

[crister13]

What's the tank size?

 

[carey]

For salinity i would aim for 1.025, thats closer to the natural range of the ocean.

 

[dwint]

What's the tank size?

75 gal

 

[JustinKBreen]

Hard to say without a picture, however your description sounds like coraline. Coraline is considered desirable by most.

 

[dwint]

looks alright on live rock but not decorations