Thanks for the input about root tabs. All my crypts are doing well but I may try them under the sword. Since my crypts are doing well I decided to get more. Also had a conversation with my wife about whether to keep this tank or not when we get the forty gallon, she wants to keep it. But I think I'll keep the light and substrate as it is, it is very low maintenance. So I bought Crypt undulata, balansae, green gecko, cilata, and bronze wendti.