1 is 23.5 inchs x 11.2 with plastic plastic back end
2nd is 23.5 x 11.2 with plastic plastic back end
3rd is 23 x 9 has no plastic back end
I have been looking for tanks that fit them but no luck.
I think 1 came from Aqueon tanks.
2 has the top fin labelled handle on it.
If you have tanks that can support these glass tops, then I am will to buy those tanks off you..This way i can make use of both matching lid and tank.