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I just get gallons of DI from target, I use about 10 gallons a month and may not be practical for larger tanks, but my acros are good as long as I don’t do anything stupid, so probably good enough as far as purity goes.
I like AFR and Kalkwasser combo, like others say, AFR is expensive, so kalkwasser is a good companion for cost management and as a pH enhancer. I think a small amount of AFR with kalkwasser maxed out to close to evaporation rate then up your AFR is a pretty good strategy, at least works great...
So the pre-treatment
Phosphate: 0.08
Nitrate: 15
Today
Phosphate: 0.17
Nitrate: 25
Will probably put GFO in today or tomorrow when I have time, but looks like nutrients are climbing so I’ll probably retest tonight and tomorrow to see where they head.
Visually, it looks like the algae in lower...
Treatment is officially in flight, mixed up half a capsule in some tank water (2x treatment as allowed per the label) for treating the 2.5 gallon tank volume. Did a decent 30% water change prior and removed GFO. From what I have read, GFO can be reintroduced after 3-4 days to keep phosphates...
I do not think so, the algae is going on snail shells and a couple coral skeletons that it has choked out too. Seeing as the plastic is PETG (mostly carbon oxygen and hydrogen with one sulfur in the center of the molecule) I doubt it is a food source.