1. Definitely a kamfa
2. Looks fine, maximum kok size is from genetics if your fish is well taken care of then it'll grow to its appropriate size. Kamfa usually have smaller kok than ZZ types of flowerhorn like red dragons.
3. Afaik it's mostly a cosmetic issue? The main concern is that the delicate gills are exposed so don't keep any pointy wood and rocks, more rounded stuff is fine. Fish also use the operculum to push water over the gills but as long as he isn't gasping at the surface oxygen isn't a problem. Seems like you have sponge and a Hob so you're probably fine.
4. White poop can come from stress of moving but it's also a sign of intestinal parasites. Personally it's something I'd rather catch earlier than for the fish to randomly stop eating after a few months of looking healthy on the outside. I'd treat with praziquantel medication like prazi pro but anything with praziquantel in it should work.
5. Might just be picky after getting live foods or is getting reduced appetite from parasites so only wants to go after high value foods. Medicate him first then check appetite after full treatment, if he still won't eat pellets he's just being picky so fast him for 1-2 days and only offer pellets.
6. FH shouldn't be on a live fish only diet, the fish used to create flowerhorn are all omnivores that are typically eating more invertebrates than fish (amphilophus) or lean more on plants and algae (vieja). Long term it can cause gut issues once the fish is older, prepared foods also have a long list of vitamins and other nutrients that help round out the diet since most people cannot provide the varied diet that a wild fish would get.
7. Praziquantel can be treated through the water, no need for food treatment.
8. Kok enhancing foods are kind of a sham, the kok will grow based on genetics, health, and how dominant the fish feels. The food just needs to be good quality theres no secret sauce that specifically makes the kok grow.
Some people will groom their FH using mirrors for a few minutes a day to exercise the fish and make it feel dominant I don't do it personally but I can see the appeal.
Pearl colors are enhanced by the phycocyanin in spirulina, feed a food with spirulina in it to increase pearls.
I liked that you've got some stuff in the tank btw, everyone does things their own way but keeping FH in completely empty tanks is boring imo. My FH have always liked to dig in the substrate after fully maturing, it gives them something to do.
I thought I was ready to bring him home but man I feel unprepared. So here goes.
