i think this is the way i am going to go for when i set up my 20 gallon. i have a few questions.
following the plan that is listed in the sticky here some of the ingredients are dolomite, pottery clay, and muriate of potash.
- is the pottery clay any clay that would be called pottery clay? i have 10 lb of it but it is grey. i threw away the packaging ages ago and i have no idea what it is besides "pottery clay" and it will dry out if i were to take it out of the plastic bag. will this be ok?
- dolomite, when i search that on a hardware store site it comes up as lime. is that the same thing? how much will i need for a 20 gallon tank (and probably a 10 gallon tank too, i will most likely do both tanks)? they are selling it in 25 lb bags, i don't know what i will do with so much.
- muriate of potash, i can't find this at all when i search. is there another name for this? is there anything else i can use?
and, one more question, do i have to cover the soil with sand or gravel? i think i would prefer just the soil. i was talking to the girl at the pet store today (she is very knowledgeable about fish/tanks/plants) and she said that she didn't recommend any of the gravels that they had at the store. she said that she couldn't get any of the good stuff in for any cheaper than i could get online so they stopped getting it in. so, i don't really have any option for getting good gravel/sand unless i order something like flourite and that is expensive! i could use kitty litter (after testing it) but i don't like the colour of it. i would prefer the dark colour of soil. will it be ok with just the soil?