It is 105 gallons. Plecos are there for 2 months, but most of them I had in 50 gallon tank. Plants are Vallisneria gigantea, Anubias sp., Hygrophila polysperma, Cryptocoryne affinis and microsorium pteropus. They are doing well, I used JBL florapol into the sand and also, every week I use liquid fertilizer to boost their grow. The temperature is around 86 F.