No. Mainly grow out tanks for a while. Like 3 fish in each. I will eventually get a 150ish tank. When I find one in good shape for a good price. I have a 55 gallon that's busted that I thought about making a 48x48x18 out of around march. Dunno what that'd make it. 150ish? Where I work we make coolers for like grocery stores etc... I'm calling my plant manager today to see if we have ne rejects in storage they wanna get rid of. If that goes threw then I have big future plans. Its something that can maintain temp. 3 to 5 inches of foam insulation. I will turn one into a lab. And try some selective breeding projects to see what I can get. Would take a lot of time but the end result might be worth it. But that's all up n the air. I was HOPING 3 p's would be comfortable in a 50 gallon breeder (36x18x18) and a 55 (48x12x18). If not let me know and ill turn down dudes offer. I'm trading a 130 gallon glass aquarium that's scratched all to hell and possibly still leaks with a stand for a complete 50 gallon setup. Stand hood lights heater filtration etc.. and a 55 gallon with 300 watt heater and pumps but has no hood or stand. Not scratched.