It's definatly not fine enough for a a fish to burrow into. Not even snails. They try to go for it buy can't do it. I suggest a Patch of Sand, White, off white, or even Black. In a conner or a center patch. wide in the front narrow to the rear of the tank.
answered 1 year, 4 months ago
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The grain is small 2mm-5mm. This would be a perfect match up for your ideal substrate.
answered 2 years ago
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If you check CaribSea'a website, grain size varies from 0.25mm to 7 mm. It's essentially a mixed bag of sand, small gravel, and pieces in between.
BUT, for any eel, you'll want to go with complete sand (if you don't mind him burrowing everywhere). If he digs into gravel, he's likely to scratch himself on something and it might get infected. The eel is likely to uproot any plants, but you can hedge your bets by using eco-complete in the planted portions of the tank and have a separate sand-only portion for him to burrow into (should be rather deep, since he'll get BIG). Separating the two portions can be tricky, but people use everything from stones, tank dividers, to plastic sheets and then some. For the sand, research it's grit, since many sands can be abrasive.
answered 2 years, 3 months ago
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The grain size at the largest is around 1/8th of an inch going down to a powder that settles underneath the larger particles. It's heavy enough to stay on the bottom and keep plants down (provided you know how to plant correctly). Your peacock eel will definitely be able to burrow in it, though I would worry that the chards may be too sharp for your eel. I would recomend some sand for your eel. Just to be safe.
answered 2 years, 9 months ago
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