Even if it's 300L in a 400L tank?Water changes due virtually nothing to lower phosphate levels. They work on nitrates but not phosphate. Just add some phosguard or chemipure and walk it down slowly so you don't stress your corals or fish.
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Even if it's 300L in a 400L tank?Water changes due virtually nothing to lower phosphate levels. They work on nitrates but not phosphate. Just add some phosguard or chemipure and walk it down slowly so you don't stress your corals or fish.
Even if it's 300L in a 400L tank?
Proof is in the fact that they jump right back up, you have phosphates bound in likely both your sand and rocks.Even if it's 300L in a 400L tank?
it won't. Your test kit is not a very good indicator for one its only registering unbound phosphates and your system is bound up with phosphates. Hobby grade test kits for Phosphates are not the best way to test for itSo managed around a 300L water change out of 420L And tested phosphates and tested 0.21 so a good drop from 0.51 hope now the GFO does the rest slowly at least now it's more achievable in reducing slowing.
But by adding GFO it was a noticeable drop in levels and it it continues to drop would that not mean it's not binded to the e rock and sand. ?Correct.
Even a 100% change often will not do enough for it. The reason is that there can be a huge reservoir of phosphate attached to rock and sand surfaces, and any effort to lower it requires also stripping off much of that phosphate.
Immediately after a 100% change, the values may read low, then over hours to days, it rises back toward where it was as this phosphate is released. How high it gets again depends on how much exposed rock and sand surfaces you have.
It's a new tank 0 phosphate during cycle process, it's only after all the live stock and fish were transferred was the a huge increase in phosphate.May I ask why you’re trying to drop PO4 this fast? What’s the urgency? It took a long time for the PO4 to build up and it should take a while to reduce. This is a sure fire way of causing some major issues, especially doing that large of a water change. Your rock is going through a roller coaster of saturation and leaching, which should’ve been done in your curing process. Soaking it in RO does nothing to help in the long term, you need to cure it in saltwater and slowly pull the PO4 out, this takes time. The same thing happens with dry rock, it soaks in PO4, then it starts to release over time after saturation. Water changes don’t do enough for nutrient export, but employing more efficient natural methods of nutrient reduction is always best and less stressful on the biology of your tank. Bacteria, algae beds, skimming, etc….. are your best bet to reduce nutrients. Use a little gfo or similar to help out, but use half the amount and use natural methods for reduction. Whatever you do, just go slow.
How long have they been in and what sort of trend have you observed in the phosphate over that time? What kinds of corals are stuggling and where are they?Corals were looking great over the past few days but some appear to be more sensitive and struggling.
Tank is only into its 4th week old. 15 day cycle and all coral and fish transferred across from my 70.2 tank.How long have they been in and what sort of trend have you observed in the phosphate over that time? What kinds of corals are stuggling and where are they?
What was the PO4 in the old system, just before the transfer?I have recently started my new waterbox 130.4 everything was transferred from my 70.2 gal tank over a few days. Corals and fish.
Everything was in check and when I checked my Phosphates using hanna phosphorus checker and it first read 200ppb which is roughly 0.6 Phosphates.
Completed a 150L water change and tested a few hours later and was at 190ppb
I tested again today and same again 190ppb. I have started using Rowaphos in a media bag in a medium flow area as recommended.
Corals were looking great over the past few days but some appear to be more sensitive and struggling.
Anything more I can do or rode it out while the rowaphos does its thing?
Additional water changes?
Sand and rock were dry and rinsed heavily with RODI water before tank went through its cycling. Again Phosphates were 0.01during this period.
0.09 and everything was thriving, had a little bit of algae issue but nothing major. Today's reading was 0.240What was the PO4 in the old system, just before the transfer?
OK thanks.0.09 and everything was thriving, had a little bit of algae issue but nothing major. Today's reading was 0.240