Oranate Bichir vs. Yellow Lab

[pyshy]

HayHighHay everyone. First post hereI'm not sure if this is in the right place, but it is who I am more concerned over. Iv'e had these two fyshys for about a month. Obee, the Ornate Bichir, is about 6 inches long, and EleKtro, the Yellow Lab, is 3.5-4 inches. They are living together in a established, well planted 30gal. I will be upgrading for Obee's sake. They seem to get along. I noticed though, that EleKtro tends to follow around Obee. No big deal. He doesn't seem to be aggressive towards Obee at all, seems like he is just chillin' with him. I know the Ornate are a mellow fish, and the Yellow Labs tend to have some form of ADHD/Tourettes syndrome, or just plain active. Now I've noticed that EleKtro is sucking on Obee , and what's worse is it looks like his tail is a little trashy now. I notice EleKtro like's to suck on everything, but I don't think it's good that he sucks on Obee. Do yellow labs tend to do this a lot? I notice in watching them at the store and you tube that they chase each other around alot. This seems normal. I'm not sure what to do. Do the Labs need to have some other of their kind to pick/play with? There is no competition with the two housed together, as far as housing and food goes. They share the same log sometimes even. Obee eats live foods, Elektro eats dead food only. I don't know if I should take the Lab out or maybe add another one? I am going to be upgrading my tank real soon. I love our fyshys and want the best for them. Hope to hear from someone. Thanks Peace