Should they be kept in a nano tank? Been told recenetly that clams dont actually need a crystal clean tank and actually like ammonia. They even feed them it when growing? Not sure if this is true?

If you want to keep clams you will have to add calcium, so that means a calcium reactor! not cheap, plus I dont think the soft corals would like it to much but on the otherhand you could set up a frag tank!

not so sure, you will need quite a lot of stony corals before you need a calcium reactor and if you are doing weekly water changes they will help to replace calcium. Also a kalk topup will help

In a small body of water like a nano its not too expensive just to add calcium powders when necessary. I've done it a couple of times to keep that lovely pink algae spreading on the LR. One scoop of the TMC stuff buffers 5 gal of water up by 38 ppm. (I think - this is from memory so could be wrong.)

Depends if your adding hard corals I spose.

Clams aren't that difficult to keep really. Just give them lots of light and calcium and they'll do great, they don't even mind if the water quality slips a bit (I should know been there done that and my 3 loved it). Soooo, if you have MHs and are prepared to keep dosing for Ca and alkalinity (N.B. this can be very tiring to do even for a small body of water) then go for it. Remember though that cute little 3" clams can grow rather quickly into large people eating monsters, well OK not that big but a nano will be too small for one in the long term so plan for that bigger tank.

Regards

Lisa

I found clams easy to keep.

I've never introduced them to a tank less than 6 months old & as my tank is SPS dominated I'm dosing calc & magnesium anyways.

I have 150w MH with 96w PC's and they're thriving.

The only problems I have are my sexy shrimp annoying them once in a while.

Go to Clams Direct for a clam dedicated forum.

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I would suggest you stick to Tridacna crocea as this is the smallest of the clams commonly kept. Normally they reach around 6"-7" shell length.
The trouble is, they need a lot of light. If you have enough light, you may do well

The other species will probably grow too large for a nano.

Whatever you do, stay away from Tridacna derasa. I had one that grew from 3" to over 10" long in two years!