Guys is it okay if I use a internal filter ( the type that attaches to the glass by suction cups) will it be enough ? the tank is a 90 G.Thanks in advance for all answers 
Agreed..... and when you tank out the internal filter to clean it, most of the poo and uneaten food falls out any ways.Bderick67;3643566; said:Don't like the internals myself, most are unattractive and take up tank space.
bitteraspects;3644077; said:try looking into OHF trays. they are the most popular type of filtration in your area, and should be pretty easy to get, and inexpensive.
also, you should build your own for just the cost of the return pump, and a couple of supplies from the hardware store.
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