What next?

[mmw64]

I have had a cyano outbreak caused by high nitrate and phosphate. I have used a whole bottle of Red Sea Algae management over the last few weeks. The nitrate have come down but phosphate is still high. I have cut down on amount I'm feeding but what should I be feeding frozen cubes or flakes? Should I keep on keeping on with Red Sea product or try something else? Thanks in advance.

 

[dankaqua]

I have had a cyano outbreak caused by high nitrate and phosphate. I have used a whole bottle of Red Sea Algae management over the last few weeks. The nitrate have come down but phosphate is still high. I have cut down on amount I'm feeding but what should I be feeding frozen cubes or flakes? Should I keep on keeping on with Red Sea product or try something else? Thanks in advance.

I'm guessing you used NO3 PO4-X?

I'm going to go out on a limb and guess that you have phosphates stored either in your aragonite sand or in your live rock. Thus your nitrates dropped but your phosphates remain at higher levels.

There are good threads on R2R detailing how the calcium carbonate can absorb phosphate and then release it after a water change or after chemical removal.

Adding phosphates to the tank by feeding is likely part of the problem. Obviously you can't stop feeding your tank's inhabitants, but how about moving some of the heavier eaters to another tank?

Can you post some pics or videos of your system, detail your water parameters and livestock/feeding schedule?

 

[mmw64]

I'm guessing you used NO3 PO4-X?

I'm going to go out on a limb and guess that you have phosphates stored either in your aragonite sand or in your live rock. Thus your nitrates dropped but your phosphates remain at higher levels.

There are good threads on R2R detailing how the calcium carbonate can absorb phosphate and then release it after a water change or after chemical removal.

Adding phosphates to the tank by feeding is likely part of the problem. Obviously you can't stop feeding your tank's inhabitants, but how about moving some of the heavier eaters to another tank?

Can you post some pics or videos of your system, detail your water parameters and livestock/feeding schedule?

Thanks for your help. I only have one tank a Red Sea Reefer 350. It's been running for almost five years. Wish I could post pictures but am older than dirt and not very tecky.