I'm just starting to get into saltwater, I have a 75 gal drilled tank, sump, skimmer, I just picked up reverse osmosis system, tank has sand & dry rock, that's it. What can you recommend for testing equipment?
I’d remove it as it’s probably full of nutrients at this stage. Plus the fw bacteria and other microbes in it will all die in sw. I guess you could clean it really well but I’d rather be safe than sorry and just start anew. Never know what nasties are in the sand and will cause algae issues in a saltwater tank
20 Gallon SPS reef
29 Gallon FW "fat catfish" tank
20 Gallon Long Dart Frogs "Zig" and "Zag"