Hello everyone!! Newbie here!! 
I have kept Clams for over 2 years in a 180 litre coldwater tank with large fantails, and I must say they are an absolute joy to keep!!!
Coldwater Clam filtre a huge ammount of water for food and spend all their lives under the gravel doing this, so you have to remember to feed your fish, slightly extra, and keep their diet very varied...you will be rewarded with near perfect water quality as Clam help considerably with the tank enviroment, as long as you test and do 3rd tank water changes on a regular basis....If your clam appears on the gravel for some reason, you will also be rewarded with a fascinating display from the clam as he digs his way back under the gravel...their fleshy white "foot" will appear and feel about for a nice spot, and then they will dig sometimes quite vigourusly, untill they are out of sight again!
I will be more than happy to answer anyones questions about coldwater clam!
:goldfish:

I have kept Clams for over 2 years in a 180 litre coldwater tank with large fantails, and I must say they are an absolute joy to keep!!!
Coldwater Clam filtre a huge ammount of water for food and spend all their lives under the gravel doing this, so you have to remember to feed your fish, slightly extra, and keep their diet very varied...you will be rewarded with near perfect water quality as Clam help considerably with the tank enviroment, as long as you test and do 3rd tank water changes on a regular basis....If your clam appears on the gravel for some reason, you will also be rewarded with a fascinating display from the clam as he digs his way back under the gravel...their fleshy white "foot" will appear and feel about for a nice spot, and then they will dig sometimes quite vigourusly, untill they are out of sight again!
I will be more than happy to answer anyones questions about coldwater clam!
:goldfish: