Rowaphos or PhosBan? which one is better?

sort of like asking which brand of sugar or white rice is the best. GFO is GFO. there are only two core sources of this stuff so there is no real functional difference between brands other than being pelletized, granulated, packed dry or moist ect). I use Pura Pholock because its way cheaper than both those and was strong enough to completely bleach my monti cap in 24hrs after it stripped the damn tank clear of phosphates in half a day. Use bulk reef supply, dr fosters brand or pura. those are the cheapest brands and they all work the same. dont over due it.
 
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