Would 2 AC 300's be enough for a 75 gallon?
- Thread starter roper930
- Start date
If stocked on the light/moderate side, for sure. If you want more insurance, go for an AC500 and an AC300 and that should be able to handle a very decent bioload on a 75 gallon.
HTH
-Richer
HTH
-Richer
AC 500s
A 75 could manage on two AC300s. I would not do it myself because I like the higher water turn over rate and larger media area of the AC500. I have two AC300s on my 36" tank.
Emp 400s have a more convienent area for media as opposed to the AC300 or AC500. I have a pair of Emp 400s on my 55g but I hate them! They get very noisy and don't start up very well after water changes. I contacted marineland and they sent me some replacement parts... I haven't gotten around to putting them in. Too much trouble.
For a 75, go 2 AC 500s! Put in the sponge, a cell pore block or a 2nd sponge and use the top for a buffer. Peat for soft water, coral for hard. I suppose you could use carbon... I just never do.
ACs are easy to work on and clean.
ttl
A 75 could manage on two AC300s. I would not do it myself because I like the higher water turn over rate and larger media area of the AC500. I have two AC300s on my 36" tank.
Emp 400s have a more convienent area for media as opposed to the AC300 or AC500. I have a pair of Emp 400s on my 55g but I hate them! They get very noisy and don't start up very well after water changes. I contacted marineland and they sent me some replacement parts... I haven't gotten around to putting them in. Too much trouble.
For a 75, go 2 AC 500s! Put in the sponge, a cell pore block or a 2nd sponge and use the top for a buffer. Peat for soft water, coral for hard. I suppose you could use carbon... I just never do.
ACs are easy to work on and clean.
ttl
In my opinion I think to many people on here think you need a lot more filtration than you really do. One AC 500 or 1 emperor 400 should be enough on a 75g considering tanks dont hold as much water as they are supposed to, plus they hold even less when you get the gravel etc in. Also I rely more on water changes than filtration.
I'm with Rollin.. one AC 500, with nothing but sponges in it, will be more than enough filtration for an avg 75 set up.
Two AC's would be more than enough Im with Rollin on this topic also. I would say even a AC 300 and 200 would do it too. Plenty pf filtration especially if you do weekly water changes.
Many experienced aquarists that I've known and talk to will not contest the benefits of overfiltration. In most cases, there is no such thing as overfiltration. It is almost always better to overfilter than to underfilter... or even to have just enough filtration. Overfiltering your tank means a few things:
1.) Less filter maintanence. Although this seems to be a paradox, more filters = less maintanence. Each filter on your tank will take in an equal amount of fish gunk (assuming the filters are equal). Seeing how the fish only produces a limited amount of gunk, surfice it to say, having more filters means each filter takes in less gunk, thus leading to less cleanings. My 66 gallon has a fluval 404, an ac200 and an ac300. I clean one filter out once a month on a rotating basis.
2.) That brings me to my second point. You can clean the filters out on a rotating basis, minimizing any small chance that cleaning out the filter might cause a mini-cycle.
3.) A safe guard. Suppose one of the filter's motor burns out, you still have another filter as a backup.
HTH
-Richer
1.) Less filter maintanence. Although this seems to be a paradox, more filters = less maintanence. Each filter on your tank will take in an equal amount of fish gunk (assuming the filters are equal). Seeing how the fish only produces a limited amount of gunk, surfice it to say, having more filters means each filter takes in less gunk, thus leading to less cleanings. My 66 gallon has a fluval 404, an ac200 and an ac300. I clean one filter out once a month on a rotating basis.
2.) That brings me to my second point. You can clean the filters out on a rotating basis, minimizing any small chance that cleaning out the filter might cause a mini-cycle.
3.) A safe guard. Suppose one of the filter's motor burns out, you still have another filter as a backup.
HTH
-Richer