Re:Tank Size – How Many Pairs

Pete Giwojna

Dear Cheryl:

Very impressive! With your extensive background as an aquarist and over a year of valuable, first-hand experience keeping and raising seahorses under your belt, I’m sure everything is going to go very smoothly.

The 57-gallon aquarium certainly has an efficient filtration system with LR, LS, a good protein skimmer and a good canister filter to provide circulation, supplemental biological filtration, and mechanical and chemical filtration. Given your background and an excellent set up like that dedicated to seahorses only, you should be able to keep five pairs of adults or 10 large individuals in your new system easily. And I would say that it has sufficient water volume and enough margin for error to introduce two pairs of seahorses at a time without overtaxing the filtration or causing harmful ammonia or nitrite spikes, so you needn’t restrict yourself to introducing seahorses individually anymore, Cheryl.

Congratulations on your success breeding and rearing your seahorses, too! Your 4-1/2 month old juveniles will be hitting sexual maturity in another month or two, so I can certainly understand why you need more room. They should thrive right along with their parents in your new 57-gallon setup.

Good luck with your your new dedicated seahorse system and your latest crop of fry, Cheryl!

Happy Trails!
Pete Giwojna

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