Ok. I was gonna get all 3 of those plants actually. So the anacharis will be good in the gravel? Will the fern or anubias grow in the gravel or will they just die?
I've read that they will die, but I don't know from experience. I have a large java fern "on the substrate". I superglued it to a piece of slate. Then, I gently placed the slate on the sand, and gently brushed some sand over the slate to hide it, so the java fern appears to be planted, but it isn't.
Super glue is aquarium safe, I don't know about hot glue. You can also use cotton thread. I've heard of folks using netting to tie down things like java moss, but putting netting into my tank scares me.
***I did find one of my fish that decided to eat my cotton thread. Fool thing got a little stuck, and the thread came through its gill. It finally managed to free itself before I had to intercede, but I snipped the excess off right after that! Don't leave ANY excess sticking out more than you absolutely have to. (I still have no idea what that little guy was thinking! )
Yes, they will. These are all considered low light plants. The anacharis will melt back (kind of like a new fish that pouts when it is moved), but it will sprout back to life in a few days. Just keep vaccing up the leaves that fall off. The anubias and java fern will grow slowly, but they will grow as well. If you see one of their leaves go dark, just snip it off at the base - new leaves will follow.
Probably fine, just be slow about restocking. Your bacteria will have probably died back a bit. The plants will help with the ammonia, but they won't use much with that low lighting. Just go slow. Wait a week, probably two between loading in more fish. Be prepared for a mini-cycle and water changes, especially with that first reload.
Ok I'll start with 1 Molly and 2 platys then I'll wait 1-1 1/2 weeks to do 5 tetras then I'll go next week with 3 tetras then week after that the bn pleco then if fry are big enough 4-5 platys 2 weeks later. Finally the next week I'll do the pair of honeys
Just keep an eye on ammonia and nitrite. If they are anything other than a solid zero... wait a little longer until they are a dead zero before adding any more.