I was thinking of switching my gravel out for some soil instead, but I would like to know if I can get some answers to my questions first. Thanks in advance!
1) Would it mini-cycle my tank if I took out all of that gravel? I'm not sure if my minimal amount of plants would be able to keep up with that (3 java ferns, 1 wisteria, 2 monyworts with a ton of roots across the top of the water, anarchis, and 2 other plants that grew from pods that I got at walmart and can't remember the name of.
2) How long until I can put my fish back in?
3) Is a sand cap absolutely necessary?
The tank is 10 gallons and stocked with one betta and four guppies. Two sponge filters.