Learn before you buy

Custom Acrylic Aquarium Guides

Planning a large reef or fish-only display? These guides from HGFC Custom Tanks (Holy Grail FC) answer the questions we hear most from people shopping for a 125 to 700+ gallon custom acrylic aquarium: materials, sizing, cost, plumbing, delivery and setup.

All guides

Buying Guides

• Acrylic vs Glass Aquariums: Seams, Clarity, Weight and Cost
• Red Sea REEFER Alternative: Acrylic Tanks in REEFER Sizes

New guides are added regularly. Looking for prices? See our standard size price list, or read how a custom build works.

Have a Question We Haven’t Covered?

Tell us about your space and the tank you have in mind. We’ll help you plan it, then send CAD drawings for your approval before anything is built.