Loaches Online Forum

I find that the larger ones sink pretty well if you hold them underwater and squeeze all the air bubbles out. Haven't tried it on smaller freeze-dried, but probably worth a shot.

Mostly I'm looking for something that'll work for both plants and small loaches. I've liked what I've seen from Onyx sand so far, but its buffering capacity does not seem to be as, ahem, "slight" as the packaging would suggest (indeed, I rather suspect Onyx / Onyx Sand are exactly the same as the gr...

Say, there wouldn't happen to be any slag in the rocks you tested? Smelting byproduct, somewhat glassy/obsidian look, dark blue/green color (around here, anyways). It seems inert, but I don't exactly have a TDS meter on hand...