red coraline and red cyno's (i need some help!!)

[ffsteve]

I know that i have red cyno (dark red and bubbly) and i think i have red coraline.
first i have had the cyno for a long time (2-3 months) i suck out as much as i can, my phos is at .025 and trats @15-20 i do a 55 gallon water change every 2 weeks (200gallons total) everything else is on the mark mag,calc,alk, all good. when i feed almost nothing gets wasted, i just started feeding my corals with ca fuel. but the cyno hasn't changed. is there any other thing i can do to get rid of it??.

second can you suck off the red coraline off the rocks?? or is it like the purlpe?

thanks steve

 

[JohnK]

Coraline will be hard, calcerous and encrusting on the rocks, so no it won't get sucked off. (and it's good, you don't want to remove it)

For cyano,
More than anything else it's an issue of nutrient control. Good quality make up water, blowing rocks clean and siphioning out detritis as frequently as possible, nutrient export (refugim with good cheato growth and harvesting, carbon dosing with a good skimmer, siphioning out the cyano) all help. Also cyano generally doesn't like high flow, so sometimes if the growth is mostly in one or two spots you can disrupt the growth by directing some additional flow into that spot(s).

 

[s_kelley]

Jimmy is spot on as usual. Also in the meantime while your trying to get things under control you can run a reactor with GFO in it to help get rid of your phos problem. Are you using RODI water for your water changes?

 

[ffsteve]

i have been running gfo and carbon, rodi with 0ppms out, i'm going to keep the lights off to day and suck out as much as i can.
you guys said it don't like high flow, i can flow so much that it moves all the sand and this stuff will grow on top of the sand burm.
i guess it is good because you can see where i need more flow!