It's for an exile tank... 5 gallon... its about a foot and half high; in diameter actually (its a shape of a circle) THen the width is about a half a foot. The openning is about 5-6 inches and I just can't figure out anything to work.
Also, i can't find a heater than won't melt the sucker... you guys know how those vacuum to clean gravel works... right? well is there anyway to set two of those up to circulate the two aquariums into one. I have a filter for the 5 gallon but if i circulate the water i won't need a tank and the 5 gallon water would be healtheir. I can't afford power heads and frankly don't think they will fit in the 5 gallon, lol... it also might empty the five gallon in a second

neway, please give me your oppininos... thanks in advance...