Lawnmower Goby/Yellow Watchman Goby

Hello All,

Just need to know what you all think! I have a 20 gal high with 2 O-Clowns, 1 Royal Gramma, 1 Lawnmower Goby, 2 peppermint, 8 crabs, and 9 snails. I got the lawnmower today and wanted him, because I want to see how well he will control the green hair algae. I looked him up on the net because my wife said that the clowns were acting spooked. I found out that he is not an aggressive fish for the most part, but can be if provoked. I did read where one lawnmower is all you really want unless they come as a pair from the LFS. I am interested in a Yellow Watchman Goby. Do you all think I can have these two gobies in the same tank, or will I have to trade the lawnmower for the watchman next time one arrives at my close by LFS. Let me know what you all think.

Thanks in advance for the advice.
Gus Gonzalez

 

I wouldn't add any more fish to your tank. Those two clowns can become quite territorial in that small of a tank, after all, they are from the same family as damsels. Personally, I would just go with the clowns and the lawnmower or the watchman, but then again I'm more of a coral guy and only have one clown in my 29 gal right now. Also, a 20 gal is a little small for a goby IMO.

 

Are you talking about a Blenny or a Goby? Because they are two diffrent things. A lawnmower blenny is a herbivore and eats Algae. A Scooter Blenny and most gobies are carnivores. I assume you mean Lawnmower Blenny in which case this is a very hardy and peacful fish that will do well and become fat and will not harm your fish. I have one in my tank and it shows no agression at all. Only when my angel gets a little to close does it even ge a little mad but nothing of concern. it is a fish that doesnt pick but is also hard to be picked on.