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TankRig

Breeder Boxes

Open top boxes with slotted walls and a slotted floor that hold small fish apart from the tank. Hang one over the rim or mount it on your own suction cups.

A breeder box holds small fish apart from the rest of the tank. Three walls and the floor are cut with slots, so water moves through the box, and the back wall stays solid against the glass. We build them with 1.5mm slots and with 3mm slots. That slot width is our own choice, not a tested number, so read the size and decide for yourself whether it suits the fish you keep. Pick the rim hang version to drop it over the tank wall, or the suction version to use your own cups.

Fry Saver Box, Nano, 1.5mm Slots, Rim Hang, Black, product photo

Fry Saver Box, Nano, 1.5mm Slots, Rim Hang

An open top box with 1.5mm slots in its walls and floor that hangs over the tank wall and holds small fish apart from the tank.

$24.99New design
Fry Saver Box, Nano, 1.5mm Slots, Suction Mount, Black, product photo

Fry Saver Box, Nano, 1.5mm Slots, Suction Mount

An open top box with 1.5mm slots in its walls and floor that mounts on the glass with your own suction cups and holds small fish apart from the tank.

$21.99New design
Fry Saver Box, Nano, 3mm Slots, Rim Hang, Black, product photo

Fry Saver Box, Nano, 3mm Slots, Rim Hang

An open top box with 3mm slots in its walls and floor that hangs over the tank wall and holds small fish apart from the tank.

$24.99New design
Fry Saver Box, Nano, 3mm Slots, Suction Mount, Black, product photo

Fry Saver Box, Nano, 3mm Slots, Suction Mount

An open top box with 3mm slots in its walls and floor that mounts on the glass with your own suction cups and holds small fish apart from the tank.

$21.99New design
Fry Saver Box, Standard, 1.5mm Slots, Rim Hang, Black, product photo

Fry Saver Box, Standard, 1.5mm Slots, Rim Hang

An open top box with 1.5mm slots in its walls and floor that hangs over the tank wall and holds small fish apart from the tank.

$32.99New design
Fry Saver Box, Standard, 1.5mm Slots, Suction Mount, Black, product photo

Fry Saver Box, Standard, 1.5mm Slots, Suction Mount

An open top box with 1.5mm slots in its walls and floor that mounts on the glass with your own suction cups and holds small fish apart from the tank.

$29.99New design
Fry Saver Box, Standard, 3mm Slots, Rim Hang, Black, product photo

Fry Saver Box, Standard, 3mm Slots, Rim Hang

An open top box with 3mm slots in its walls and floor that hangs over the tank wall and holds small fish apart from the tank.

$32.99New design
Fry Saver Box, Standard, 3mm Slots, Suction Mount, Black, product photo

Fry Saver Box, Standard, 3mm Slots, Suction Mount

An open top box with 3mm slots in its walls and floor that mounts on the glass with your own suction cups and holds small fish apart from the tank.

$29.99New design