I'm giving as much detail as I can, so this may be long, but bare with me please.
I found a great deal on a used 49 gallon tank that came with a stand, magnum 350 filter, two light hoods (one 10,000k and one power glo), and uv sterilizer that was missing the piece that secures it. We hooked up the filter but it was missing the center piece on the carbon cartridge, so we are using the round paper-ish filter that goes in instead. It was filled with unfiltered tap water, a double dose of prime, and new gravel (small smooth stones). Some of the water leaked out of the filter hoses due to old o rings (getting new ones today). This was supposed to be a fishless cycled tank, but that didn't go as planned...
I bought a 3 inch black ghost knife fish, a 1 inch angel fish, one parrot cichlid, and two African cichlids to put in the new tank once it was cycled. I know that I will eventually need a 75+ gal for the angel and ghost knife, but the 49 was going to work for a little while. To keep them safe until the larger tank was cycled, I got a 20 gal that I transferred the water, gravel, and filter media from a 10 gal for an "instant cycle". My theory was that it would be the equivalent of a 50% water change. I moved my mother guppy and her fry from the 5 gal nursery tank into the 10 gal (already housing 4 danios, an oto, and cory cat) along with the filter, water, and gravel. I put in a brand new whisper 10-30 gal filter as well. Again, it was the 50% water change theory.
The problem came when the 20 gallon cracked along the bottom.
Now all of the fish EXCEPT for the ghost knife, angel, oto, and fry are in the uncycled 49 gallon. We started up the Magnum filter placed on a plastic basket inside of a bucket to catch the leaking water for the moment. I also moved the filter and as much of the water from the 20 gallon as I could catch in a bucket into the 49 gallon tank. I bought 8 small to med size plants (largest I could find on short notice), as well as some moss to place in the new tank. I also bought a 20+ gallon whisper filter the help keep the water circulating, but it doesn't look like it's doing much. The older versions of the whisper filters, like what I had in my 10 gallon before, seem to be so much better.
So, to sum it up, I have plants, old filter media, Magnum 350 filter, a somewhat weak 20+ gal filter, a bubble wand, and two small bubble stone going in the tank. I have also turned up the heaters to 82. I'm keeping an eye on the water parameters, and going to do a 25% change in both tanks today.
1) Is there anything else I can do to help my fish stay healthy?
2)Is the 10 gal the best place for the angel and knife until the other tank is cycled?
3)Do lights matter? And if so, do I use the powerglo, 10,000k, or both? I'm hoping to keep the plants good and alive to help with ammonia/nitrites. 2 amazon swords, 3 what look to be java ferns, 2 crypts, and a small floating plant as well as the moss that is tied to an ornament.
Thanks in advance