minimum tank size for corals

[reef_runner]

What's the smallest tank you'd recommend for keeping corals? I've got a 10 gallon but worried it's too small for anything beyond softies. Lighting is a basic LED, no skimmer, weekly 20% water changes.

[brysonx]

A 10 gallon can work for soft corals and some LPS like Zoanthids or Mushrooms. Just keep params stable, especially calcium and alkalinity. I'd avoid SPS unless you're running a high-end light and dosing.

[Humblevibe]

Yo, I've got a 5 gallon pico with some GSP and it's vibing. Just gotta stay on top of water changes, like 10% twice a week. Don't overfeed or it'll get sketchy fast.

[fixin]

Tank size isn't the only factor. Flow and lighting matter more for coral health. In a 10 gallon, aim for 20-30x turnover and at least 100 PAR at the substrate. Test magnesium regularly if keeping LPS.

[pawsy]

Yo, I've got a 5 gallon pico with some GSP and it's vibing. Just gotta stay on top of water changes, like 10% twice a week. Don't overfeed or it'll get sketchy fast.

That's impressive! How long have you had the GSP in there?

[Duskwalker]

I've kept Acans and Duncanopsammia in a 10 gallon for over a year. Key is consistency: same salt mix, same water change schedule, and don't mess with the scape too much. They thrive on routine.

[nifty]

Soft corals are your best bet in a small tank. Xenia, Kenya Tree, and Leathers are forgiving. Just watch for allelopathy—some release toxins that can mess with other corals if the tank's too cramped.

[corals]

small tanks need more attention, but they're doable. i'd skip the fancy stuff and stick to hardy softies. less headache, more chill.

[reef_runner]

Thanks for the input, everyone. Think I'll start with some Zoas and see how they do before trying anything more demanding.

[brysonx]

Thanks for the input, everyone. Think I'll start with some Zoas and see how they do before trying anything more demanding.

Smart move. Zoas are a great indicator—if they're happy, your tank's probably stable enough for other LPS.