PhProblems New tank
Yes, there are certain types of gravel and/or gravel additives that will sustain certain pH levels because of there alkalinity (buffering capacity); these include crushed coral as well as dolomite and gravel containing amounts of calcium carbonate, etc. But is there a reason why you feel that you need to lower the pH? Guppies enjoy a high pH, up to a point — what is your tank water pH? What is the pH of your tap water? The “high” pH may not be due to your gravel.
BTW, I’d just like to point out an incidental, which you may already be aware of; a tank set up for only a week is far from being cycled. As it goes through the cycle, it may or may not cause problems for your guppy fry. Fifty guppy fry do not sound like very much of a bioload, but then this all depends directly on the size of this grow-out tank. As these fry grow, and you’ll need to increase their feedings, you’ll need to keep on top of the water parameters more and be prepared to increase their PWC’s. I’d recommend to at least “seed” this tank now with a portion of your existing filter material in your established tank, to the filter of your new tank. Ray
Category: Philippines Internet Koi Society
