Just wanted to let you know that finally got to that used 5gal tank last night. It was pretty clean but still gave it good scrub and used bleach sol in proportions suggested by you. This am will rinse it out goo then will start working on rinsing out the sand I bought for it, the rocks, plants and ornaments have been soaking in my current tank water overnight (did pwc last nite too) seemed like it may be a good idea, shouldn't hurt anything. Only thing now with the new tank is that filter tubes and box fell apart during cleaning before I had a chance to take a good look at it how it's supposed to look assembled. .... guess can always buy a new one if can't figure this pne out. I'll be moving my betta trio to this tank once the water in it is good. Got the API master kit the other day. Man, it's expensive!!!! 35$!!!! But I wouldn't be comfortable moving those fish there without comfort of always being able to know if their environment is not toxic to them. Once everything is going I'll try to take and post some pictures. Happy Easter!