I have a 10 gal divided 4 ways and 3 ways. In the 4 way I have sponge filters (home made) in each section, heated and I have a 2 mossballs, anubias, and lucky bamboo ** leaves above water** . so that is probably why my water seems to maintain integrity. I also Make sure to do water changes weekly and I have 2 halfmoons, 1 super delta and 1 hmpk. mostly with massive fins and I have no tailbiters, and Gorgeous colors. My hmpk was tailbiting at first, but I moved him to an end, and his fins are growing back nicely
. In my 3 way I just recently nixed the filters because my boys were getting too stressed, ( they weren't sponge filters) and they have big fins so even when I baffled the filters, they got stressed. I have a mossball in there and I intend to add lucky bamboo, and some anubias. I feel like those easy plants help alot and my boys LOVE anubias, I always find them sitting on the leaves, I just let them float.