300 gallon

Hey guys, long time user but created this new account as my old email got lost in a void. I recently bought a 300 gallon glass tank from a local guy in town. Awesome deal on it, and beautiful tank, but it had a problem. Guy said the tank was filled last year up to the 3 overflows with no issues...

Looking for a wide footprint for rays, lmk what you have!

Will a silver arowana, school of tinfoil barbs and a Lima shovelnose catfish work together? (or any other suggestions lmk)

Hello, I recently got 2 new aquariums, one of these will be a big upgrade for my African cichlids and the other I'm planning on using for when I get my first freshwater stingray. The stingray I'm planning on getting is a mini marble motoro and will have 3 mono pbass. My tanks are getting...

Hi all. I'm getting back into the hobby after a 5-year hiatus and I'm looking for a reef ready, 96" 300 gallon (or thereabouts). Will gladly pay a reasonable price based on condition, features, etc. I'm in the Hampton Roads area of VA but would be willing to travel to come get it if it's not...

HI i have 2 questions: i'm from india a i wanted to have my LFS make a 300 gallon 68 by 30 by 30 inch aquarium with bracing and 12mm glass. my LFS says it's impossible without at least 19mm glass even though most charts and calculators say it's more than enough! and he says a 68 by 30(w) by...

can i keep peacock bass with 40 adult angelfish in a 400 gallon aquarium?

i have a 300 gallon south american style tank and it has one oscar. i need some suggestions for schooling fish i could put with him (maybe angelfish?) the than has amazing filtration and can filter upto a 2000 gallon.

hi! i have a tiger oscar ( not agresive) in a 300 gallon and want to add some angelfish (around 16 adults ) to the tank, but not sure if that is possible. the 300 gallon tank has a lot of hiding spots and has very good filtration( capable of supporting a 2000 gallon) any thoughts on this

Looking for a bigger fish tank in north california

So I was planning to upgrade my 180g to a 300g Marineland in October, but in my post a few months ago I posted that I have read many negative reviews on the Marineland 300g and many of you confirmed the leaking issue. I saw on line a Tsunami 245g bowfront. The dimensions are 72”L 30”W 30H...

Hello fellow addicts , I have a 300 gallon aquarium in storage and I’m trying to brainstorm some seriously overpowered filtration, obviously planning a sump but I was hoping you fine people could help me out as I’ve never had one , what can you recommend for pumps, builds and, setups. This will...

I just upgraded my sun room pond to a 300 gallon and leave it at 75 degrees (I live in Florida and my goldfish can handle the heat waves) I have 5 fancy goldfish and 2 comet, I was trying to find a large interesting tank mate that could coexist with them and not bother the fancies. Or perhaps...

Starting to build stand this weekend. Tank i ordered is 96*30*24. Will be wooden 2*6 frame wrapped in med-x MDF (wood countertops made of water resistant) and painted. Some input required What height would you recommend for cleaning purpose. Never had such a tall tank before. (Filtration is 2...

So wife wants new hardwood floor and my 120 gallon has a small crack on a seam. Holds water now just fine just don't wanna risk moving again. So I just ordered a new tank. 8 feet long 30 inches wide and 24 inches deep Starfire from Pannell regular glass all other panes. 3-4 weeks away. Now the...

Hi Everyone, I'm planning to build a pond that has the dimensions of, 6 feet x 3 feet x 2 feet. It is 300 gallons. I would like to put 2 oscar fish. I want some other large predator fish, what do you guys reccomend? Please give me a whole stocking, ie (2 oscars, 1 clown knife, ) etc. I want...

Finally made progress on my sump and tank. I will post as much information as I can in hopes it will help other newbies such as myself. Please feel free to critique as I will be filling the system soon to test everything! Tank Specs: 305 Gallons 3/4” Starphire (all walls) L 84” W 30” H 28”...

So after about 8 years away from keeping an aquarium (I kept a 90 gallon aquarium with my father until I graduated high school), I have finally decided to get back into the hobby. I recently acquired a 300 gallon aquarium (dimensions - 96"L, 30"W, 24"H) at a garage sale for a steal and am eager...

Hey guys I would love some help figuring out how to build my sump. My tank will house an Asian Arowana with possible discus and a ray or eel. The tank is going to be 84x30x28 with a 3 foot external ghost overflow at the back coupled with Bean Animal drains and two returns. I would like to go as...