Questions - Need some input

I have a small leak on my 2 inch bulkhead leaking from my sump to my pump. The leak is from where the piping glues into the bulkhead. As to not have to replace it and the ball valve could I seal around where the pipe meets the bulkhead with epoxy? If not epoxy what? Or am i doomed and need to replace the ball valve and bulkhead?

Thanks

Craig

When you have it mixed what are you Dkh and CA in the mix before it goes in your tank?

For a frag system is a baffle really necessary? Other then looks in main display do bubbles harm the system or cause any issues I am not aware of?

Thanks

Craig

I have a small tank that the plain green/brown zoos are going nuts. What is the best way to clean off the ones I do not want? They are acting like weeds.

TKS

Craig