Hey, I just popped in, and was suprised to find this thread still open! My dwarf frogs passed away, one smushed herself under a piece of wood, and the other caught bloat. I miss their singing. I replaced them with some gorgeous rhinohorn gobies, a species which likes a bit of salt, the way mollies do. So I started adding about 2 TBS salt per gallon to my 29 gallon planted DSB. That is a very low amount, not even really enough salt to be considered mild/low brackish, but it mada an amazing difference in my praecox rainbowfish and livebearers. They are VASTLY more colorful, active, and healthy! My plants were hardwater species for the most part, except for one Amazon sword, the only plant having a problem with the salt. So then I brought home an adorable figure 8 puffer named Festus. He ate the gobies. I don't like to think of it.
Of course, before adding salt I had to relocate my breeding colony of 9 habrosus dwarf cories, along with Peaches, my albino balloon ancistrus. I set up a new 10 gallon Walstad tank for them to live in, along with 4 male Endlers and my betta, Spartacus. The substrate consists of a little red clay mixed with potting soil, covered by white pool filter sand to a depth of 3 inches. They are doing great in there, and so are the plants. A dark grey anoxic layer appeared in the sand shortly after setup, to my satisfaction. I haven't tested the parameters in either tank for a couple months, but there are no problems, so I'm happy with them both.
Of course, before adding salt I had to relocate my breeding colony of 9 habrosus dwarf cories, along with Peaches, my albino balloon ancistrus. I set up a new 10 gallon Walstad tank for them to live in, along with 4 male Endlers and my betta, Spartacus. The substrate consists of a little red clay mixed with potting soil, covered by white pool filter sand to a depth of 3 inches. They are doing great in there, and so are the plants. A dark grey anoxic layer appeared in the sand shortly after setup, to my satisfaction. I haven't tested the parameters in either tank for a couple months, but there are no problems, so I'm happy with them both.