i am fairly new to this although as a kid i had a 10 gallon tank. i always wanted a cichlid aquarium so a few months ago i bought a 20 gallon to keep tropical fish( as i did as a child) to see if i really wanted to do this. Well i love this new hobby and feel like an old kid(lol) that can afford what i want. So i bought a 75 gallon and have african cichlid tank. i have been keeping track of the water conditions and have found that the ph keeps falling. Is this normal? i also thinking about getting a matching tank for south american cichlids i know the water parameters are different. Anyway just wanted to say Hello.