rowaphos help

[makana]

I have a phosban reactor coming with some rowaphos. Can anyone tell me what is a safe amount to start off with in a system that is about 25g? I don't want to shock anything by dropping the phosphate too fast.

[NIVLEM09]

for my 33 gallon sps tank.i use 100 ml of rowaphos.

[makana]

Any other suggestions/advice?

[FitoPharmer]

I suggest if you are really interested or worried, buy a PO4 colorimeter, test, and add media based on those results. If your PO4 is really high start with a 1/10 of the suggested amount for your tank and slowly move up from there. You are correct in thinking using to much GFO or phosrowa at the beginning has the potential to shock your system. But that is based upon how high or low your current phosphate levels are. Or just play it safe and slowly add more to your reactor until you reach the recommended amount without testing. Do you have bad algae problems now? or is your tank relatively algae free?

[xenon]

We had success with 250ml on our 150g SPS system before switching to Fauna Marin Ultra Phos.

I would agree with FitoPharmer. Get yourself a Hanna Phosphorus meter to keep an eye on things. If it drops PO4 too fast, you can always unplug the reactor or run it every 12hrs on a timer.

[Xadieu]

If you had read the instructions and made a simple calculation you would have gotten your answer.

Rowaphos instructions clearly states that you use 100 grams for every 100 gallons of saltwater.

1 grams = 1 ml
15 ml = 1 tbps

your tank would require 2 tablespoon of rowaphos

[Treebeard]

Is Ultra Phos "better" than Rowaphos?

Originally Posted by xenon

We had success with 250ml on our 150g SPS system before switching to Fauna Marin Ultra Phos.

I would agree with FitoPharmer. Get yourself a Hanna Phosphorus meter to keep an eye on things. If it drops PO4 too fast, you can always unplug the reactor or run it every 12hrs on a timer.