Hi A&J ..I also feed my fish twice a day...so as long as u arent overloading it each time, that should be good...bloodworms are great protein..and the fish love them...some ppl feed them exclusively depending on the type of fish you have...if you have plants in the tank, they each differ for the amt of lite you need...I dont have live plants but I do leave my tank lites on 8-10 hours a day...unless im not home....if you do the sides of your tank, you will only be able to look into it from the front..never on the sides..so if you prefer that, I think its one's own opinion...im not sure about adding anything, your 10 gallon with the
goldfish wont be enough room for them eventually...goodluck and get some pics if you can..would love to see it!