Posted: Wed Jan 06, 2010 5:25 pm
Everyone is so afraid of acrylic. I have a 55 gallon acrylic aquarium for my turtle. I can assure you that turtle claws do not scratch the tank. I've had my turtle in this tank for over a year and there are no more scratches than there were when I got the tank. If you aren't clumsy with your tank, it will be fine.
Acrylic tanks is a get what you pay for situation. The more you pay and the more reputable place you buy from, the more you will be satisfied with the tank and its construction.
People make acrylic tanks or buy them in 1,000+ gallon sizes all the time and they are great quality and do not need a huge bunch of bracing. If you use the right thickness of acrylic, know what you are doing, and have a top that is designed right, you wont need tons of bracing. You will need a piece that goes all the way around the top of the tank with usually two open bays and then you custom drill the back top for filter hoses, etc.
Yes, the bottom must be fully supported and level, and yes plecostamus' can scratch it to hell. But basking lights will not turn it white from heat or UVB rays. In the days of older acrylic, this was a concern. But now acrylic has progressed and this isn't a concern any longer.
If you are a beginner, I would suggest not building a tank. Just buy an Acrylic or glass...