is ro/di needed for sharks, specifically coral cats? ive been running a fowlr setup off of tap/well water with no problems, but i have no idea what the tds are.
FLESHY;4738266; said:I would say the opposite of the above.
If you can get away without RO/DI, the better.
The fact of the matter is that we can never make water with better buffering or more complete than what it naturally is.
The less you take out of your h2o, the less you have to put back in.
You also wont have to spend the time or money on RO/DI.
If you dont have to, dont. But I recommend getting your h2o professionally tested first.
Zoodiver;4738841; said:If you use city water, just watch the copper levels in it.