It seems like overnight my tank was overtaken with algae. While I'm sure it's been slowly building up, I just noticed it. It appears there's both a brown and a greenish algae. I would definitely like to get something to help with the algae and add to our tank (just 2.5 platies). When we started out we had a bn pleco, and I loved how awesome he was, but I'm not sure our water parameters are fitting for one. I believe my last ph reading was 7.6 (will do another tonight after a water change and tank cleaning), and I know we have hard water. I called to get the gh and kh, but the only number the guy gave me was the caco3 was 186 parts per million. He's the head of the water dept and said that's the only thing they test for. Since we only have a 20 gallon tank I'm not sure what other options I have.