02-27-2013, 04:41 PM
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Originally Posted by VerdantGrotto
What type of rock can you put into one of these tanks. Is it something you would want to not manipulate water chemistry or something you do?
Lake Tanganyika has a ph of 8.5-9.0 with very hard water, so its not going to hurt to have calcareous rocks in the tank that will buffer the ph a little. Most of my rock is sandstone and limestone. Personally I don't worry so much about getting the water exactly like lake tang, especially with tank raised fish, I just want slightly basic water with a stable ph. My water out of the tap is decently hard and about 7.8-8.0 ph, so I don't really mess with the water chemistry too much.