Stocking wise, I'm going FOWLR and not sure which of these I could get into a 20G, these are the fish I like: Ocellaris/Tangerine clown (seems mandatory) Firefish Royal Gramma Neon Goby Mandarin Dragonet*. * - I know, a Mandarin won't do well for food in a tank this small. I have an old 10G...

Can you use a reef only tank to filter out water for other fish only saltwater tanks?

I havent been able to get on the computer to much lately to research things but i am looking at getting an mp40 for my 90 gallon reef tank. i want to know everyones thoughts and opinions of it since they are not cheap i want to make sure they are really worth it. Right now i have two koralia 4s...

I've done a fish-only marine aquarium, and a couple reef tanks, all successfully (though not complete by any standards), but I've never used a protein skimmer, and can't quite understand why it's necessary. I understand the nitrogen cycle, proteins, and the breakdown of waste, but isn't the...

Due to limited space I want to setup a refugium in a separate small tank, size 5 to 10 gal tank. Can this be done successfully, and then transfer the food to the main tank with a net? Also can substrate be used instead of fine grain sand? The reason is I have lots of extra stuff that I'm not...

My girlfriend bought me my 8 gallon tank and 5 jellyfish for my birthday in June and I really liked it. So I did some reading and what not and decided to start a reef tank up with a spare 10g tank I had sitting around. I am still new and learning but what I am really trying to understand is how...

Can you over filter your water?

Hi everyone. I have a 190g display tank with 40g sump 70 kilos of liverock nitrate recator culcium reactor skimmer UV etc etc Pictures will follow soon. I want to upgrade my filtering system with the addition of marine plants (macroalgae) so that Macro algae absorbs the nutrients that...