Hose water is tap water run through a hose, the problem is that as stated by RTF some mainly new hose leach toxins into the water. this true even with older hoses if you have a nozzle attachment that doesn't allow the water to drain from the hose. picture a 100 foot long black old style hose full of water sitting in the sun for a couple days, until that stored water is flushed it will taste of chemicals. The main thing is to run water through it for a couple minutes before using it.rumblesushi said:what's the difference between hosewater and tapwater?
Sadly all fish keepers are as bright as most of us.
mming pool