The Ista hang on back breeding box is intended to hang on the back of the aquarium, therefore not occupying space in the aquarium.

The Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aquarium. I especially like it for sorting fish since it circulates tank water through so it doesn’t get yucky while you’re sorting. Mine is functional and i use it when needed but I often default to the ziss box for the easy factor.We take fraud very seriously so all credit and debit card transactions are subject to validation, authorisation and security checks by both the card issuer and ourselves.

The main use for mine is likely going to be attempting to grow moss / susswassertang without risk of it getting tossed into the HoB filter. The Fluval Black Max Airline Tubing is ideal for use with air stones, air curtains, air powered ornaments and air-driven filters. As a result when I'm feeding cry in the box the rest of the tank is conditioning off bbs that get through the mesh.

Small pea puffers (and presumably other like minded fish) can jump out of the box over top of the silly little gate, so keep that in mind with jumping inclined species. Ziss has lots if flow , i can see it and feed it easily, and its in the main tank so uses that volume of water for stability.

For over 30 years therefore it has earned the trust of fish-hobbyists by making innovative products that deliver many valuable benefits. All that said, it’s a great detention center for a larger pea puffer that misbehaves (ask me how I know). I'd suggest literally just silicone it too, it's dumb that it's a "feature" to be able to switch gate sizes when it does nothing but cause issues. Small fry will definitely exit even through the finest “grate” so something like a piece of pantyhose or other fine mesh over it will help.When using for breeding fish, there is a removable section so that the mother fish stays in the top section, and the baby fry fall to the bottom section to keep them separate to prevent fish eating the fry. A bit of craft mesh taped over the opening over top of the overflow gate would likely stop that silliness. A small piece of sponge or any kind of floss stuffed into the opening of the inflow tube does wonders for making the bubbling/burbling quieter.