The carpet's I have are taking off they seem to not mind tap water @ all. I have 3 that are 1 month old just starting to split, and that's with moving them to a new house across the city.
I have them in my 29G refugeless/skimmerless with the vortech turned to almost zero,305 canister filter,hydor koraila nano and hydor koraila 1
If I increase the flow on the vortech they will start to move to a place that is not out in the open and easily visible.
I just went fishless in hopes to breed snail's I'm hoping they will survive on light and with daily feeding's of cyclop's,mysid shrimp.