Re: low maintenance fish
If you want a pleco look for a bristlenose pleco. They stay small, roughly 6 inches or less. The males are ugly but the small size is what you want. They will keep all algae down. They are THE best fish for it in my opinion. Thing about them is you need driftwood in the tank for them to munch on. It aids in their digestion.
Snails work as well. Get I believe zebra snails as they don't reproduce in captivity (for whatever reason) and do a great job of algae. If you go with others that do reproduce you can buy assassin snails to keep that population down (snails eating snails!)
Don't worry about how many fish per gallon. As I said, it's about the bioload. Sometimes my fish population explodes, other times its down. They control themselves.
Sammy, I found ick to be a concern with mollies because they come from a brackish area I believe and the increase of salt in the water keeps ick away.
Lastly, don't buy any "balloon" or other man made genetic defect fish.
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