NinjaTetra
Aquarium Advice Freak
- Joined
- Dec 22, 2012
- Messages
- 298
I am in the process of setting up my 40 gallon (at last)! It will be planted, but no too heavily. I have the tank, decor, and Eco-complete. But I have some questions. I think I need more filtration, but it is not necessary. If i got more filtration the only difference is i would add a few male guppies. I have heard lots of good about sponge filters, and my lfs has some at incredibly decent prices. I have a top fin 40 filter, which will be enough, but I would prefer to add more. How does a sponge filter work? Does it have to stick out of the water? Is it just an add on to my normal filter? I would use a 10-25 gallon sponge filter just as more of a backup if i get one. If it has to be mounted above the tank, it won't work because the hood is made specifically for only one filter with no extra cutouts. Thx in advance!