bubbles on live rock

[tony]

definitely looks like cyano

be aggressive with water changes and vacuum out as much as you can

later on you might try chemiclean, lots of people here have had success with it, including myself (numerous times)

[tony]

one of the best posts ive seen regarding cyano

http://maast.org/forums/showpost.php...58&postcount=6

[alliedag85]

thanks tony! im @ wk so when i get hm i will get the bubbles out. how long should i keep the lights off for?

[tony]

i wouldnt change the lighting cycle

it needs it to grow but doesnt solve the problem

[alliedag85]

today i had the light on for 5hr 10k and the actinic for 7hr.
im going to do a water chsnge today.

[alliedag85]

well b4 i did the water change i checked my per. alk is low and pho and nit is kind high. i took out my bio balls and replaced it with live rock. im just wondering y my alk went down it was 2t 9.

sal. 1.024
ph. 8.3
cal. 400
alk. 4
phos. 0.4
nitrate. 20

[Goofball310]

just a quick question... how old is your tank?

[secretweapons22]

I have had the same problem, water changes and vacuming the top of you sand bed along with the cyno seems to work well.. u loose a little sand but not much sometimes ill rinse the sand and let it dry out and throw it back in my sump.

[alliedag85]

tank has been up since nov 5 08

[alliedag85]

well i got the nit and phos back down just trying the get the alk back up. ill check my per in a few days. thanks for the help everyone