cyno on sand only

[Garth Schafluetzel]

i will try and get pics but trust me when i say in my 125 DT i have almost the entire sand bed covered in cyno this was a problem befor a week spent away from the house but when i returned all coral was still fine some even colored up but my skimmer was not running and the main pumps turned off so all theat they had were light and powerhead flow and ive tried for over a month to get the sand bed clean it drives me nuts. all sps zoas lps everything looks fine i did have a fish take a trip through the filtartion found him in the sump stuck to a pump and a chromis turn up missing but my cyno started befor this and like stated befor not on any rocks just the sand. any ideas

 

[roshi719]

Water changes water changes water changes. Oh yeah and some GFO. Sounds like some phosphates accumulated in the sandbed. Get the nutrients under control, and the cyano should go away on its own.

 

[Garth Schafluetzel]

ahh this triggers a memory on a whem trying to save money on this project i boust 60lbs of live sand from a lfs that had just took down a tank do u think i could have gotten this problem from the used sand. also i have a 75 ran into the system that has had issues in the past with red slime but it had never made it to the dt and i tracked that prob down to lack of flow the 75 holds a dawrf lion and a violtens lion and ive started growning calurpa as well try to use as sort of a fug. and should i try sifting the sand as much as possible through the next couple water changes i try not to it seems like to much would kill aot of critters

 

[roshi719]

Siphoning the sand will help. The sand could have already been loaded with phosphates when you got it, and the problem was just "sleeping" until now. If it's too bad you could put some erythromycin in to kill the cyano, but I always like to treat the cause of the problem not the symptom.

 

[Garth Schafluetzel]

i agree on the problem befor the symptom i think i need to get o coupld of the local guys over here and get some things going in a better direction lol at least my corals r all ok

 

[roshi719]

For now. Phosphates are definitely present, and corals don't like phosphates. especially SPS.

 

[Garth Schafluetzel]

ill get some phosphate remover from the lfs i have a couple things i could trad for much needed tlc for my tank i think i new bucket of salt phosphate remover and some slime remover is in store im thinking 10 gal a day water change for the next 2 weeks the total water volume is some were around 245 -250 gal