I saw those last night and they honestly scare me. I would be 100% skeptical of any product online that doesn't have a product name posted along with the obvious sub par translation to english. I would look at getting either 2 hydor koralia powerheads or 1 Jebao wp25
Originally Posted by asmodyus
Also another question not sure since this is my first tank but I understand there is limit on how many fish vs how many coral? what is good balance I would like to be more fish sided than coral at the moment. So far I have a yellow damsel in there for cycling and will have about 42lbs to 47lbs dry to live rock.
That damsel is an aggressive fish that doesn't really have a place in a peaceful reef environment and it is going to be hell to catch when you want to remove it, especially when you get all your rock back in there. You will have to pull everything out to even have a chance of catching it. I would honestly pull it out now and use either a cocktail shrimp in a nylon stocking or pure ammonia to do the cycle.
As for a balance of fish to coral, there isn't one. You can have as much coral as you want in the tank so enjoy
You will probably be able to fit about 5 fish max in there though.