What model of the Hydor did you purchase? I'm not completely familiar with the Hydor power heads, but I do believe they are not controllable so you would definitely want to get something that would suit your tank without blowing everything out of the water.ok here is another question. I visited my LFS and was told the Hydor pump I ordered was too big for my 32biocube. she said that an 800 was the biggest that tank could handle? Does that make sense?


