Head recession

[hawkfish01]

Ive got some cyano(who hasnt) in my bc 14...i WAS doing the 3 day no lights,but now ive noticed that my hammer and my duncan have geads that have severely recessed...im stopping this and have changed over 3 gals of water..guess what,i think something was out of wack bcause the recessed head on the hammer isnt as severe as before...but the duncan has done this before on the cyano 3 day no lights cycle..are they just more sensitive?? I know i will be testing friday to see whats causing the cyano...phosguard prob needs replaced...i dont feed but every couple days..only 2 little fish and 2 shrimp...everything appears happy xcept those 2 corals....

[gmerek2]

I keep hammer coral and Duncan along with my sps. To me they seem harder to keep happy than any of my sps species. I moved my hammer the other day and it recessed also. I'm trying to figure out if it was because of less flow or less light. Good luck with cyano I hear more flow, more water changes and better skimming helps. I think cutting the lights work as long as you siphon off a lot of the dead algae/nutrients. Let us know what helped the most.

[trockafella]

Lps don't care for high flow. It will actually blow the flesh of the skeletons if its to strong.

[sen5241b]

People always underestimate how much phosphates can feed cyano. Take a water sample to LFS for a test.

[hawkfish01]

I have salifert phos test...i will check tonight,buying phosguard just in case... I dont run in this tank..run chempure and purigen only...

[Enkay]

Will a UV sterilizer reduce and/or eliminate Cyano?

[davelin315]

Reading your thread title this popped into my mind...