Is it ok to vacum crushed coral substrate?
I did it once because the substrate had planty of very tiny particles that would float whenever I scrubbed the windows close to the bottom and moved the substrate with the scrubber. So I vacumed it once, and I noticed many very thin, less than half inch long, red-black-red worms. Are these beneficial?
I did it once because the substrate had planty of very tiny particles that would float whenever I scrubbed the windows close to the bottom and moved the substrate with the scrubber. So I vacumed it once, and I noticed many very thin, less than half inch long, red-black-red worms. Are these beneficial?