I did put water in a bigger container but I cant get gravel nowOkay, never seen this one but also I’m in Australia so we wouldn’t get that here. I have read @Byron state that aloe Vera based are really not ideal for fish tanks but I think it was for use over a long period of time. It will have to do for now, have you read what seangee and Deanasue have advised you to do also? I only ask as they have knowledgeable experience with goldfish