Hi, apologies if this is a FAQ (I did search the forums for issues relating to water filtration, but did not find much that was specific).

We're building a vivarium for red eyed tree frogs. There will be a lagoon portion and I'm wondering what other members have tried with regards to filtration systems. The tank is an Exoterra 18x18x24 and will have about 4-5 inches of water around the "island" that will support the plants, arboreal structures, waterfall, etc.

Any suggestions would be most welcome.