New to the board. My Cichlid is having problems with it's tank. Went on vacation last month and had a friend take care of feeding. Got back after a week and the tank was very green inside, worse than I ever have seen. After attempting minor fixes (small water changes) we ended up pulling our fish (Ms Piggy) out and doing a top to bottom cleaning of the tank. Just before the total cleaning, Ms Piggy lost color, started moving slow and actually ended up belly up for a couple of minutes. Stated an additional bubbler and that seem to help her hang in until the main tank was cleaned and returned. Things seem to be on the mend for a couple of weeks and we're back to major green growth inside the tank. Pulled out/changed 20% of water twice in last week, still very green. Have done all chem strip test and everything seems to read OK. Have had Ms Piggy for 3 years and never had this type of problem. Help