Cyano and sps

[tom obrecht]

I have a 120 display with roughly 180 total gallons. Lighting consists of 2-250 watt halides with 20k Radium bulbs supplemented with 2 vho actinics. Water is processed through filter socks and an ATB 1050 Deluxe skimmer. Flow is high with four Tunze 6095's on a wave maker that IMO really stirs the water with high random flow....which leads me my issue. I have been dealing with cyano for quite awhile now and am not really sure what to where the problem is arising from. At times it almost disappears and then gets heavy at times which baffles me. Rarely does it disappear but if it does it reappears soon after. Funny thing is the corals seem to be doing fairly well with decent/good growth and color. Parameters stay fairly stable ( not rock solid) @
Gravity 1.026
Calcium 480
Alkalinity 8-10
Magnesium 1200-1300
Nitrates 0-15
Ammonia 0-trace
Ph hovers around 8 most of the time.
Phosphates are usually zero or unmeasurable with tests.
I'm curious what people here have done to combat cyano and what remedies that have proven results. Curious if an ultra low nutrient methods are worth exploring? I haven't tried vodka dosing ect for fear of wrecking havoc on the system but am up for suggestions.
I see some truly spectacular displays here and am so envious of them and although may never succeed in such splendor, I would like to step my display up to the next level if at all possible.

 

[ajcanale]

I have the same issue and don't even care anymore. All SPS happy and growing. I've used Chemiclean about half a dozen times with success (no losses or issues whatsoever). Problem is I always get some type of other nuissance growth after that whether diatoms/briopsis/dinos or a combo of them all. I implemented a DIY algae turf scrubber a few months ago which has helped a lot, but has not been a complete fix. Of all the above mentioned nuisance growths I find cyano the easiest to remove/eradicate

 

[tom obrecht]

I appreciate the feedback but in my mind I feel there has to be an element that is to blame. I've never been on to add chemicals to make an issue a quick fix only to have other issues arise later. I've tried fuges, mud systems in the past with less than promised results. Honestly I'm happy with the corals...it's the cyano I just can't figure out. Perhaps it's a balancing act of nutrients/additives ...that's what I'm struggling with.

 

[spsfreak25]

I just had the same issue. Now all my cyano is gone. This is what i did.
Turn all lights off except sump light(helps keep ph stable)
Cranked skimmer to max
Added 1ml per 10g of peroxide(turn off skimmer for 30min)
And cranked flow up

 

[tom obrecht]

What about thoughts on regular gfo adding iron to the tank thus fueling cyano growth? I've done reading about gfo/iron and cyano. Anyone try products like/similar to po4x4 as a substitute to regular gfo? I'm not against trying peroxide as long as it hits the heart of the problem and not just a quick fix. Thanks!