Originally Posted by Kingcichlid87
yeah i want to have 1 system .. i have a 30inch x 12inch x 12inch sump .. is that big enough . i can drill the holes in the aquarium thats not the problem its just the pipework and working out what size return pump ill need aswell .. unless i run them all on sponge filters but then ill need a heater for every tank
The only problem would be the height. 12" just isn't as tall as you want it. The reason is you'll need enough water height to make sure the pump can never run dry when water evaporates during a long weekend away, but you also need enough empty space to make certain that anytime the power goes out or you shut off the pump for any reason, the sump would't overflow. I'd recommend an 18-20" minimum for the sump. That would cover both issues, pump safety and drainage space. Does that make sense? I can explain more if you aren't clear on some things. It may seem complicated but if you tackle one thing at a time you'll find it's all more or less simple plumbing. I always found HOB
overflows to be the most problematic part of any plumbing setup and you won't even have to worry about that.