I have one of these that i got with the a new tank. Its 550lph. Will it be any use for a second filter or only really a power head with flow control?
Im was going to use it along side my built in juwel internal or should look at something else as a secondary filter?
Sorry about so many pics and the wrong way up my phone kept telling my it couldnt upload.
Fish die belly upward and rise to the surface. It's their way of falling.