Re: Opae Ula, Hawaiian Red Shrimp, SuperShrimp, whatever...
Some say don't worry about heating a shrimp tank but I have heaters in most of them. I keep the opae tanks at about 78 degrees. Whether or not it's necessary, I don't know. But they are breeding so it's certainly not hurting.
Whatever substrate you use make sure it buffers the water to keep the pH high enough. Black aragonite sand and gravel is available in some stores.
These guys also need caves and crevices to hide in. Stacking rocks is a good way to provide those.
Some folks say that lava rock releases heavy metals in the water. If it does it hasn't bothered my shrimp.
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