Hi hedgehog thanks for reply .Yes I did mean will they cross breed species wise and I do know corys like certain conditions.
We are in the process of upgrading to a bigger tank but cant decide which one to have .
I know about the rule of thumb 1" of fish to 6"of water and the overstock is very temporary(we only bought the guppies today and they are little more than fry at the moment,and the guy at the fish suppliers we use says that the filter on the fluval edge we have is more than capable to support the extra fish on a temp basis).They seem to have settled in tonight and are not at all stressed.I will keep a careful watch on the water quality as well as I always do so thankyou for your concern but it is only very temporary as I say.
Perhaps you could help us decide on the tank choice.If this is in another thread pm me please and we can chat.
Thanks again for your reply
We had 6 dainty corys but have lost 2 over a year and have not been able to find another supplier to replace them.
I agree that they are happier in shoals of 6 or more