Hi, im going to be purchasing a motoro sting ray very soon. it will just be born when i receive it. it might have like a 4" disc. i will have it in a 35 gal with a width of 13". I know its small but i dont want to put a huge tank on the second floor of a 100 year old home. i need to know of the diseases and how to take care of them. i will also have a 5" pleco in the tank. he is aggressive when feeding. i previously had an ornate bichir, and a spotted gar that died after 1 month of receiving. they lost their slime coat. i put pima fix in but it did nothing. i do frequent water changes so the water is very fresh. I heard that you can build a relationship with a motoro ray. idk if that true but that is cool. also, when selecting my ray, what should i pick? male/female? wider? longer? more spots? oddball looking in size and color? i'm not planning on selling the ray so idc about money worth. what would be best for my tank? what temp should i keep my tank at? i will be installing white sand so it keeps it stress free. if i catch an 18" wide 40 gal breeder tank on sale, i will go after it. how long could i keep my ray till i maybe upgrade? i dont want negative answers i know im stunting the fish but idc if he gets big.