These are the ones I have been to
31 Union Square, Milford, NH 03055
Limited selection of plants kept in the back corner. Seem to mainly have fresh water that you can find in the big box stores.
Fish Mike Aquatics, LLC
45 Blaine St, Manchester, NH 03102
Only been here once, Seems to be more orientated towards tank maintenance and saltwater. He said he can special order. Didn't have a lot for plants when I was there. Willing to help and answer questions
Aquatic Creations LLC
100 NH-101A, Amherst, NH 03031
Only been here once, Seems to be more orientated towards tank maintenance and saltwater. They said he can special order. Didn't have a lot for plants when I was there. Willing to help and answer questions. They had a good selection of API liquid test kits when I was there.
E Desilvio Dr, Nashua, NH 03060
This is usually the big box I go to, the staff seem to care about the fish and keep the tanks clean compared to other big box stores. They also seem to have a better selection of fish and plants can special order if they don't normally stock something. They also have RO water for fifty cents a gallon.
If you are up in Maine I found this one about a month ago
664 Main St, Gorham, ME 04038
Seem to have staff dedicated to either fresh or salt water and they seem to have an idea of what they are talking about. They have multiple tanks with plants but there weren't many in the tanks. The also had a few dwarf cichlid when I was there as well as a decent selection of drift wood and stones including Seiryu Stone.
Just starting out
55 Gallon community tank
20 Gallon community tank