I took this Caribsea Liferock dry rock from my tank and put it in this bucket of rodi water. The rodi water had .03 phosphates. I let the rock sit in the bucket for 2 days. The water had .07 phosphates after 2 days. I checked using a Hanna checker.
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Right. I was wondering if maybe in my display tank where there's a lot more rock if it's leaching a lot more. Also someone had said that dry rock does not leach so I wanted to prove/disprove that statement.
Just use GFO. It works incredibly well for phosphates.I've been living phosphate hell for the past 3 months. Just took a reading and it's .28. Nitrate at 9. I am not overfeeding. I actually haven't fed in 4 days to see if food is the source. Rocks and sand is the only thing that I can think of.
How did you use the GFO? Reactor or in a media bag in the sump?I have used just about everything. Gfo, rowaphos, lanthanum, nopox, elimi phos, np pro. I just bought an algae reactor to try next
That’s normal. The rocks definitely are bound with phosphates. Use half as much and change the GFO more often (when the water on the output starts climbing). That will work.Brs deluxe reactor. I can get phosphate to come down to around.07 but it'll shoot back up to over .2 the next day before feeding time. That's why I'm guessing all this phosphate is coming from my rocks. I've lost corals and nems.