I don't know what y'all are feeding your G Cats but I've never seen one in an aquarium that is even close to 30" and I've seen quite a few. The biggest one I've seen in person was about 24" in an 8' long 300g at a local fish store. He was in the tank for several years at this size and always seemed active and happy.
I had one before I got out of the hobby a few years back, he was 12-15"(can't remember) and housed in a standard 125g. As a whole he was very active and happy(at least by appearance) but did need a wider tank by the time I sold him.
For most people a 180g would be more than sufficient as most people buy and sell their livestock through the years, or fish die due to illness, power outage, etc. If you end up keeping a G Cat from birth til natural death then yes, you may need a tank that is at least 8' x 3' but that will not happen for most.
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I had one before I got out of the hobby a few years back, he was 12-15"(can't remember) and housed in a standard 125g. As a whole he was very active and happy(at least by appearance) but did need a wider tank by the time I sold him.
For most people a 180g would be more than sufficient as most people buy and sell their livestock through the years, or fish die due to illness, power outage, etc. If you end up keeping a G Cat from birth til natural death then yes, you may need a tank that is at least 8' x 3' but that will not happen for most.
Sent from my iPhone using MonsterAquariaNetwork app