i was wondering how an HOB filter and sand would work out,will the sand damage the filter or not. oh and as a bonus question,how do apple snails do with sand as a substrate,does it irritate them or are they fine with it?
my snails dont like sand so i use gravel. and yea sand often will get sucked up in HOB's if you have fish that stir up sand. if your filter starts making alot of noise sand has most likely gotten down in the impellor well where it sits so you have to tear it apart and get the sand out of there. often sliding a piece of foam over the intake filter tube screen will help keep alot of the sand out of the filter.
i guess ill go with gravel then,just wondering because id rather pay 20 bucks for a 15lb bag of substrate than pay 20 bucks for a two pound bag of substrate.
Both play sand and pool filter sand are fairly inexpensive and readily available. The former is found at pretty much an home improvement store and the latter at a local pool/spa shop. You can get a 50 lb bag of either for under 10 bucks.
I've had brigs do fine with Tahitian moon sand and I would imagine the non-aquarium brand sands would do just as well. They shouldn't irritate the snails' 'feet' unless it feels sharp to the touch.
As for sand and filters, it really depends. I ruined a Marineland HOB impellor using pool filter sand but I don't think I washed it well enough because I had a lot of free floating particles. Now I always use a prefilter but I just setup my 15 gallon using white playsand from Lowes and nothing was in the water column. I probably could have gotten away without it.
It's not a hob power filter but it is a hob cannister.
I just set up an old ten with Lowes playsand and am using a hot magnum on it. I fitted the outlet with an inlet strainer to keep the sand from getting stirred up . It works very well . I am still in the process of setting up this tank.
1) Wash the sand over and over and over...its never too clean
2) When adding the sand let it settle before starting up the HOB. It may also be a good idea to do some small wc's in the mean time to get rid of any stubborn free floaters.
3) If the intake is close to the substrate or you just want to be cautious, add a prefilter. It can be as simple as cutting a sponge to fit the intake.